An error analysis of the present perfect tense : a case study of grade
Transcription
An error analysis of the present perfect tense : a case study of grade
AN ERROR ANALYSIS OF THE PRESENT PERFECT TENSE: A CASE STUDY OF GRADE 11 STUDENTS AT SATRI WAT RAKANG SCHOOL IN THE ACADEMIC YEAR 2010 KANOKWAN PETCHTAE Adviser: Associate Professor Nitaya Yuangsrin A RESEARCH PAPER SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF ARTS IN ENGLISH FOR CAREERS LANGUAGE INSTITUTE, THAMMASAT UNIVERSITY BANGKOK, THAILAND MARCH 2011 ABSTRACT This study was conducted with fifty-five students of Satri Wat Rakang School with the aim of investigating the knowledge of the present perfect tense and the sources of the errors in this tense. The result of the study revealed that students have the ability to use the adverb of time in the present perfect tense, recognize the aspect of the present perfect tense and the past participle verb both in regular and irregular cases, and the ability to use subject and verb agreement in the present perfect tense. However, most of the errors that occurred in this study were in the area of transforming the present participle to the past participle. The findings of this study can be helpful for teachers who teach the present perfect tense in English grammar courses at every level. Furthermore, the subjects can become more aware of the present perfect tense when they use this tense for writing and speaking. As a result, the subjects and educators will be able to work on improving present perfect tense learning, which could make Thai students more successful. This is one of the important elements that could lead to successful language learning. ii ACKNOWLEDGMENTS I am thankful to Ajarn Nitaya Yuangsrin, my independent study advisor, for her valuable time, advice, encouragement, guidance and support from the initial to the final stages, which enabled me to develop an understanding of the subject. This study could not have been accomplished without her kindness. My grateful appreciation goes to the teacher, Ajarn Malee, at Satri Wat Rakang School, for her kindness, cooperation and helpful information for my study. Sincere thanks are also owed to all subjects, the 11th grade English-Math major students at Satri Wat Rakang School, for their help and kind cooperation. My special thanks are also extended to Ms. Salin Sriruangsakun, my dearest friend, who gave suggestions, and checked and corrected my grammar. I would also like to thank Mr. Komkrit Prasobsuth for his constant encouragement and support. Lastly, I would like to express my heartfelt thanks to my family, who have always been beside me and given me their encouragement and support in every aspect of my life. Thammasat University Kanokwan Petchtae Bangkok, Thailand March 2011 iii CONTENTS PAGE ABSTRACT ......................................................................................................ii ACKNOWLEDGEMENTS ..............................................................................iii CONTENTS ......................................................................................................iv CHAPTER 1. 2. 3. INTRODUCTION ..........................................................................1 1.1 Background ............................................................................1 1.2 Statement of the Problem .......................................................3 1.3 Objectives of the Study ..........................................................3 1.4 Scope of the Study .................................................................4 1.5 Definition of Terms................................................................4 1.6 Significance of the Study .......................................................5 1.7 Research Instrument...............................................................5 1.8 Research Procedures ..............................................................6 REVIEW OF LITERATURE .........................................................7 2.1 The Concept of Present Perfect Tense ...................................7 2.2 The Syntax of Present Perfect Tense .....................................9 2.3 The Research Studies on Error Analysis ...............................11 METHODOLOGY .........................................................................19 3.1 Subjects ..................................................................................19 3.2 Instruments .............................................................................19 3.3 Collecting the Data ................................................................20 3.4 Scoring of the Tests ...............................................................21 3.5 Data Analysis .........................................................................21 iv 4. RESULTS .......................................................................................23 4.1 Comprehension of Present Perfect Time Marker...................23 4.2 The Ability to use Auxiliary Verbs (has/have) with Subject Agreement and use the Correct Regular and Irregular Forms of the Past Participle...................................................................28 4.3 The Comprehension of using Grammar structures in the form of the Present Perfect Tense ...................................................33 5. CONCLUSIONS, DISCUSSION AND RECOMMENDATIONS ...37 5.1 Summary of the Study ...........................................................37 5.2 Summary of the Findings .......................................................38 5.3 Discussion ..............................................................................39 5.4 Conclusions ............................................................................40 5.5 Recommendations for Further Research ................................40 REFERENCES .................................................................................................42 APPENDICES ..................................................................................................44 Research Test ..........................................................................................44 v CHAPTER ONE INTRODUCTION 1.1 BACK GROUND Nowadays, English is an international language which has achieved a genuinely global status by developing a special role that is recognized in every country (Crytal, 1997, p.5). It is to be used for communication worldwide and recognized as the world language of science, business and diplomacy (Hopper, 1997) and is widely used in the administration of international organizations, such as the United Nations, multinational organizations, and air traffic controlling, etc. Therefore, English plays a crucial role in world affairs. It has also become a tool to communicate among people of different cultures. In Thailand, both the public and private sectors are growing (Jitiporn Muttavangkul, 2003) and the development of the country is influenced by globalization. English has entered Thai society and there is a need for everyone to know it. Therefore, English is unquestionably the first priority skill for workers in many companies as it is used for international contacts. People with excellent English skills will get better opportunities to be recruited to work in big organizations with a high pay rate. The fact is that English has been taught in Thailand for nearly a century, but nowadays, according to Trairat (1991), Thai students use non-standard English. From the research of Sumitra Unwattanakul (2003), there are four major explanations to answer the problem why Thai students are not successful in English. First of all, the students are not exposed to the target language community where English is used as the first language. Second, the student transfer features of their first language to the second language they are studying (Richard, 1990). Third, the students do not have adequate background knowledge about the second language’s linguistic system. Last, the teaching approaches and text books used in class are ineffective. As mentioned above, one of the main problems for Thai students is inadequate background knowledge about the second language’s linguistic system. Therefore, they 2 cannot develop their English skills. Junpui (2007) stated that many schools in Thailand, both government and private institutions, focus mainly on grammar, but students still cannot efficiently apply what they have learnt when they write, speak and read English. Knowledge of grammar is one area necessary for understanding another language’s linguistic system. This includes the study of tenses, sentence structure and parts of speech accordingly. Halliday (1994) said that if the learners of English as a second language do not understand the concept of tenses, they cannot advance their English to a high level. According to Fredirickson (1997), the problem is that students get confused when they see many kinds of verbs formed and they associate them with time. They have the idea that verb tenses are always associated with a particular time. However, some forms of verb tenses are not related to time as learners believe. The present simple is not always about the present, the past simple is not always about the past and the present continuous is not always about progressive action. For example, in the sentence, “I am going to the park this morning.”, or, “I would like to be a doctor.”. From the study of Upsorn Tawilpakul (2001), the use of English tense by Thai university students, she said that a standardized proficiency of Thai learners is not seen. In Thailand, since English is not the official language, it is taught as a foreign language, both in schools and universities. Even though it plays a role as the international language in international communication, the competence of English learners in Thailand is still far below native speakers. In order to examine such linguistic phenomena, much research has been done to evaluate the English proficiency of Thai students. It is interesting that the results from certain research indicate that tense is the most difficult element for Thai students to acquire. In addition, Yuttasak Arakkitsakul (2008) found that the present perfect tense is one of the most confusing tenses for Thai students. They use the present simple or past simple to describe the present perfect tense because there is no tense in Thai. For all the reasons mentioned earlier, teachers need a better understanding of why Thai students have difficulty mastering the English language. 3 1.2 STATEMENT OF THE PROBLEM As mentioned above, the main problem for Thai students is inadequate background knowledge about the second language’s linguistic system. This research will focus on studying the acquisition of the present perfect tense of Thai students learning English as a foreign language. It is one of this issues that Thai students have problems with because it is not only related to time but also the result of action. Many Thai students find it is not easy to learn. When studying English grammar, tenses play crucial part and one cannot deny that it is one of the most difficult parts in English. Non-native learners have to spend much time to understand and use it properly. This is evident in much research in second language acquisition (SLA) that has been done in Thailand, which concludes that language transfer is a major cause of difficulties in the acquisition of English tense by Thai students. 1.3 OBJECTIVES OF THE STUDY This purpose of this study was to examine the acquisition of English tense, specifically the present perfect tense, as it is one of the most problematic tenses for Thai students. This research surveyed how Thai students’ background knowledge about the second language’s linguistic system to determine it adequacy. The present perfect tense was selected because it is one of the tenses that is confusing to learners. The main purpose of this study was to analyze students’ errors in the present perfect and identify the sources of errors when taking multiple choice and fill in the blank tests, as well as making sentences. This study tried to: 1. Analyze the type of grammatical error for the present perfect tense. 2. Analyze the problem of using adverb indication in the present perfect 3. Analyze the problem of using the auxiliary verb “has/have” in both the tense. singular “has” and the plural “have” forms as to subject-verb agreement. 4 4. Analyze the problem of organizing grammatical structure in the present perfect tense. 1.4 SCOPE OF THE STUDY 1.4.1 This study was done with a sample chosen from 60 11th grade students of Satri Wat Rakang School. 1.4.2 This study tried to analyze the use of tenses in the form of the present perfect tenses in a multiple choice test, fill in the blank test and a making sentence test with 11th grade students at Satri Wat Rakang School. 1.4.3 This study aimed to investigate the students’ level of English proficiency in the area of form and usage of the present perfect tense. 1.4.4 Only the sources of the particular errors were discussed in order to make a useful contribution to the teaching of grammar to Thai second language learners because the idea of present perfect is still difficult to understand among Thai students. 1.5 DEFINITION OF TERMS 1.5.1 11th grade students refer to the students who were studying in the 11th grade at Satri Wat Rakang school in academic year 2010, all of them got B and C grades from E31102 (English foundation) in the previous semester and all of them had already learnt all 12 tenses when they were in the 10th grade. 1.5.2 Error refers to all errors in the use of present perfect tense in time markers or the use of incorrect forms of verbs 1.5.3 The present perfect tense refers to the tense (Rabieb Na Kalasin, Kanitta Utawanit, & Yura Iemchuen, 2006) that 1. Indicates that recent past, usually with adverbs; just, already, recently, 2. Indicates that the event was completed in the past but its result is yet. operative at the present time. 5 3. Indicates an action or state beginning at some time (not necessarily recent) in the past and continuing to the present, usually with “since” and “for” time expression. And also the action may extend beyond the moment of speaking. 4. The auxiliary verb relates to only the auxiliary “has/have” in both the singular (has) and the plural “have” forms as to subject-verb agreement acquisition. 1.6 SIGNIFICANCE OF THE STUDY This research intended to analyze errors in the present perfect tense as reflected in a multiple choices test, fill in the blank test and making the sentence test. The research findings will help Thai English teachers develop their teaching methods or activities for improving teaching about the present perfect tense. In addition, Thai students will have a better understanding of the basic rules of the present perfect tense and be able to apply them properly when they have to write, speak and read English in their daily lives. 1.7 RESEARCH INSTRUMENT The research tools for data collection consisted of three English proficiency tests: 1.7.1 Part one was a multiple choice test, consisting of 20 items with 4 choices - This part tested the ability to understand adverbs indicating the tense, such as since, for, already, yet, just and recently. 1.7.2 Part two was a fill in the blank test, consisting of 20 items with 23 - This part tested the ability to use the correct regular and irregular forms blanks. of the past participle. 1.7.3 Part three was making a sentence test, consisting of 10 items. - This part tested the ability to write present perfect sentence from the words given in the form of affirmative sentences, negative sentences and questions. 6 1.8 RESEARCH PROCEDURES An Error Analysis of the Present Perfect Tense: A Case Study of Grade 11 Students at Satri Wat Rakang School is divided into five chapters as follows: Chapter one is the introduction of the study. It consists of (1) background (2) statement of the problem (3) objective of the study (4) scope of the study (5) definition of terms (6) significance of the study (7) research instrument Chapter two is the review of literature and related theory and research about acquisition, focusing on tenses and present perfect tense, both in foreign countries and in Thailand Chapter three is the methodology applied in the study, covering (1) the subjects of the study (2) the materials or the research instrument used in this research, (3) collection the data and (4) data analysis. Chapter four reports the results of the study. Chapter five is comprised of the conclusion, discussion and recommendations of the study. CHAPTER TWO REVIEW OF LITERATURE This chapter presents the review of literature and research studies related to this topic. There are four sections in this chapter, which include the concept of present perfect tense, the syntax of the present perfect, language acquisition research on comprehension and production, and related research on errors analysis, both in foreign countries and Thailand, as shown in the following parts: 2.1 THE CONCEPT OF PRESENT PERFECT TENSE The present perfect is one of the twelve tenses in English. Many scholars have explained its concept which relates to time and aspect. For example, according to Allen (1996), aspect it is a concept that it is used to talk about a special feature of verb meaning. The idea is that verbs are not just about time (past, present, future), but also about other kinds of meaning too. One type of aspectual meaning involves a sense of completion or a lack of completion. Suh (1992) wrote that verbs refer to a dimension of time in relationship to each other. The meaning of times also involves the perfect aspect. As a result, tense is one of the most difficult grammar concepts for teachers to explain to their students. In addition, some scholars have explained the concept of the tense and aspect of present perfect tense as the following: Frederickson (1997) said that there are three basic ideas of the verb tenses, the simple tenses (present and past) have the same underlying idea. Understanding present time gives the idea to understand the past time. And understanding of the past continuous gives the idea to understand the present perfect continuous and understanding the present perfect gives the idea to understand the past perfect. Fuchs (2000) discuss, the concept and usage of the present perfect, writing that present perfect is formed with have or has + past participle and its usage is as below: 8 1. Present perfect tense is used for talking about things that started in the past, continue up to the present and may continue in the future. It is also used to talk about things that happened at an unspecified time in the past. It can be used when speakers do not know when something happened, when speakers do not want to be specific, or when the specific time is not important. 2. Present perfect tense is used for talking when speakers want to stress their actions at some indefinite time in the past. 3. Present perfect tense is used for talking about things that have happened in a time period that is not finished, such as today, this morning. 4. Present perfect tense with since or for is used for talking about something that began in the past and continues into the present and may continue into the future. 5. Present perfect tense with already in affirmative sentences is used for talking about events that happened some time before now. The event happened earlier than expected. 6. Present perfect tense with not yet is used for talking about events that have not happened before now. It is possible that speakers expect the event to have happened earlier, and it is still possible that the event will happen in the future. 7. Present perfect tense with yet in questions is used to find out if something has happened before now. 8. Present perfect tense is used with ever to ask questions. It means at any time up until the present. 9. Present perfect tense is used with just and recently to emphasize that something happened very recently. Maclin (2001) explained that tense is the term used to show a relationship between time and other conditions and the form of the verb. Not all changes in the verb form are directly related to time. The way the action is understood to take place also affects verb forms. In addition to showing time, different forms show conditions such as certainly, definiteness, possibility and whether or not the action is completed. Mood and aspect are grammatical terms that show how the verb expresses ideas that go beyond yesterday/today/ tomorrow divisions. 9 The present perfect tense form is have (has in the third person singular) + past participle of the main verb. Present perfect is used when: 1. An action that began in the past and is still going on. Time markers in this situation are: for, since, in or during the last or past hour, day, week, month, year, decade, yet, so far, up to now. 2. An action that began in the past and was finished at an indefinite time but is closely related to the present or future. Time markers in this situation are: already, not yet, early, late, just, this minute, today, this month/year, recently, and lately. Greenbaum and Nelson (2002), explained that Tense is a grammatical category referring to the time of the situation; the tense is indicated by the form of the verb. There are two tense forms: present and past, three persons: First, second and third person and two numbers; singular and plural. Aspect is a grammatical category referring to the way that the time of a situation is viewed by the speaker or writer; the aspect is indicated by the combination of an auxiliary verb and a verb form. Verbs have two aspects: The perfect aspect and the progressive aspect. The perfect of a verb combines a form of the auxiliary have with the –ed participle of that verb. The auxiliary has two present tense forms (has, have) The present perfect tense refers to a situation set in some indefinite period that leads to the present. The situation may be a state of affairs that extends to the present. Or it may be an event or set of events that is viewed as possibly recurring. 2.2 THE SYNTAX OF PRESENT PERFECT TENSE To analyze errors in English structure in the present perfect tense, morphology and syntax should be mentioned, as a morpheme is the minimal linguistic unit. Morphemes illustrate the form of the past participle. The following are the definitions of syntax, the English verb system and the structure of present perfect rules. 2.2.1 Syntax 10 Syntax (Noam Chomsky, 1950) is the arrangements of words to show their relationship to one another in a sentence. Syntax rules govern proper sentence structure. 2.2.1.1 Chomsky has proposed two sets of rules: Phrase Structure Grammar Rules: These rules dictate the form of the deep structure. Phrase structure rules specify both the necessary phrase for proper sentence construction and the specific word ordering that should be followed within these sentence phrases. Phrase structure grammar forces a hierarchical arrangement among different parts of a sentence. However, phrase structure rules can not help distinguish among ambiguous sentences, for example: - Visiting relatives can be a nuisance. - The shooting of the hunters was horrible. To account for these shortcomings in phrase structure grammar, Chomsky proposed an addition level of rules, which assist in translating deep structure to surface structure sentences. Transformational Rules: These rules help transform the deep structure into the surface structure. The manipulation of verb tenses is one aspect of transformational rules. Present tense, past tense, subjunctive, past perfect, future tense are all derived through transformational rules. Some scholars, both Thai and foreigners, have explained these rules as follows. Sumon Ariyapitipun (2003) said that grammar is a cover term embracing morphology and syntax. Morphology deals with the structure of words and syntax deals with the relationship and distribution of words or words groups. Fromkin (2003) said the past participle (-ed, -en), which is used with the verb „to have‟ in the present perfect tense, is the inflectional morpheme, which is a kind of bound morpheme. These morphemes cause English to have a strictly grammatical function as they mark properties, such as tense, gender, case and so forth. 11 In the early 1950‟s Noam Chomsky (Sumlinon Ariyapitipun, 2003) studied structural linguistics and sought a way to analyze the syntax of English in a structure grammar. His theory is called transformational, generative or transformational generative grammar. Generative grammar is comprised four components: phrase structure (PS) component, lexical component, transformational component, and morphophonemic component. Each of the components consists of a set of rules operating upon a certain “input” to yield a certain “output”. 2.2.2 The English verb system According to Murcia and Freeman (1999), the verb system of English has its own characteristics. It is related to tense with reference to time. English has finite verbs which reflect along with the tense. It has only two tenses forms. They are past and present or “past” and “non past”, where “past” includes reference to remote events as well as past time, while “non past” includes references to present and future time as well as cases in which timelessness is intended. Every non-imperative English sentence must have either a modal auxiliary or a grammatical tense – past or present. 2.3 THE RESEARCH STUDIES ON ERROR ANYLYSIS 2.3.1 Error analysis studies in the use of tenses in Thailand Firstly, Sumitra Angwatanakul (1975), studied errosr in compositions made by first year university students at the Faculty of Education, Chulalongkorn University. She found that there were two main types of errors, grammatical and lexical errors. The results revealed the misuse of verbs occurred most, while misuse of tense, articles, nouns and preposition occurred from time to time. Later, Bamrung Torut (1991) studied errors in the free compositions of first year students at Silpakorn University. The results revealed that the most frequent errors were in the area of grammar. Among the grammatical errors, subject-verb 12 agreement in both present and past simple tenses, were the major problems of the subjects. Also, Upsorn Tawilapakul (2001) studied “The use of English Tense by Thai University Students”. The subjects of this research were 75 first-year students studying in the Southeast Asian Program of Thammasat University. They were divided into three classes, with all of them having taken EL172 at the Language Institute of the university. The instrument was to translate 8 sentences from Thai to English, 4 with markers (TM) and 4 without time markers (s TM), and a short passage, within one hour. The results of the study were as follows: 1. The use of time markers in Thai mostly resulted with a negative transfer to the use of English tense by Thai students. Students who got lower scores in TM translation (60.06%) were the largest number, compared with TM (28%) and short passage (40%) translations which allowed students to find an appropriate tense by considering the time of particular action. 2. After analyzing all the errors that occurred in the translation test, it was found that causes of these errors were: transfer, overgeneralization, ignorance of rule restrictions, incomplete application of rules, and false concept hypothesized. 3. Factors from personal variation, in this case, English proficiency, also had an impact on the use of English tense by the students. Moreover, Ravitpim Itiravivong (2002), studied errors in the area of present and past simple tenses in closed tests made by beginning-level students. She used closed tests to survey the errors of the students and found that ungrammatical and unacceptable sentences were as follows, ranked from high to low frequency: 1. The use of the present simple tense instead of the past. 2. Omission of the auxiliary verbs in interrogative and negative sentences. 3. Incorrect subject-verb agreement in the present simple tense. 4. Incorrect verb form or misspelling of the past simple tense. 13 5. The use of the past simple tense to express habitual actions in the present simple tense. 6. Misuse of the auxiliary verbs in interrogative and negative sentences. 7. Insertion of an unnecessary plural suffix in interrogative and negative sentence. 8. Incorrect word order in interrogative sentences 9. Omission of the subjects 10. Insertion of an unnecessary suffix-ed in interrogative and negative sentences 11. Incorrect subject-verb agreement in the past simple tense The results revealed that the sources of these errors were 1. Differences between Thai and English structure 2. Interference from Thai language 3. The method of EFL teaching 4. Lack of practice 5. Word of word translation Finally, Jittiporn Muttavankul (2003), studied error analysis in the use of tenses in English writing made by Paralegals ATDS & B Law Office staffers. She analyzed and classified errors in the use of the present simple tense, past simple tense and future simple tense. Twenty officers were subjects of this study. The results showed that the two most serious errors occurred in the incorrect use of auxiliary verbs in interrogative and negative sentences and the use of the present simple tense instead of the past tense. She further analyzed that the sources of the errors and found: 1. Misunderstanding about tense in Thai people. As there is no tense in Thai, a lot of Thai people may use the present simple tense to describe past action. 2. No tense markers in Thai language. In interrogative and negative sentences in the present and past tense, there is no tense maker for verbs or auxiliary 14 verbs in Thai language. Therefore, it is not surprising that errors related to these two tenses were often found. However; the future simple tense did not produce many errors in this study. She concluded that the auxiliary verb “will” precedes the verb in future simple tense both in English and Thai so there was no wrong usage of this tense. 2.3.2 Error analysis studied in the use of tenses in other countries Tense acquisition has been widely studied in many countries, especially in the countries where English is spoken as the mother tongue. Some studies are as follows: Firstly, Brown and De Villiers (1973), studied L2 acquisition. The topic in this research was “The acquisition of grammatical morpheme in child speech”. This study provided information about the common errors of L2 learner on tense because sometimes they misunderstood the use of tenses when they had to study English. They suggested that researchers should investigate morphemes as following: - Present progressive –ing - Plural-s - Irregular past forms - Possessive‟s - Copula - Articles “the” and “a” - Regular past –ed - Third person singular simple present “s” - Auxiliary “be” Secondly, Heckler and Edward (1983), studied “the acquisition of the auxiliary by ESL learners”. The auxiliaries were tense, modal, perfect and progressive. The subjects were 36 adult learners of English as a second language at three levels. Their first language was Arabic, Japanese or Spanish. The students were given three tests, on oral production, written production and written reception. Nineteen verb structures were tested. The results showed that the more advanced the student‟s English level, the better his or her performance in this study. Productive 15 tasks were not performed as well as receptive tasks. Little difference in performance was found between real and nonsense verbs. The overall correct response rate for tense was 71%, slightly higher for past than present perfect tenses. The rate was 57% for verbs following modals, 59% for perfect and 56% for progressive. The Spanish speakers gave the fewest correct responses and Japanese speakers gave the most correct answers. Thirdly, Koo and Koh (1994) in Singapore studied the use of present perfect tense. Seventeen college students were the subjects of this study. The subjects were asked to write an essay. The researcher found that errors in the area of verbs and tenses were the most problematic area. The results showed that the major cause of errors was interference from the first language. Fourthly, Hawes and Thomas (1997) studied tense choices in citations. They examined tense, aspect and voice choices in the reporting verbs in a corpus of research articles from the Journal of Psychosomatic Medicine. The study also investigated how much choices correlate with syntactic elements in the citations as well as with the discourse functions of the citations of the citations in their contexts. The finding is that the main choices for the verb in reporting sentences in the data are the past tense (mainly in the active form with a few passives), the present tense, and the present perfect (active and passive). The distribution of tense forms in reporting sentences is the following: TENSE Past Simple Present PERCENT ACTIVE PASSIVE 41.6% 48% 9% 31% 31% 4% 20% 20% 25% Simple Present Perfect 16 The study points to the following: 1. Past tense citations with a named researcher as subject provide particulars for a preceding generalization or basis for a claim 2. Present tense citations communicate generalized interpretations/ conclusions and suggest writer commitment to the information report. 3. Present tense citations highlight the direct relevance of previous studied to the reporting writer‟s own research write up Seventhly, Ho Mian Lian (1998), examined the acquisition of the past tense by Chinese students from Singapore and Hong Kong. Data were extracted from a corpus of compositions written by students from the two countries. The paper looked at L1 transfer from Chinese, how learners establish and maintain contextual temporality in their written discourse, and difference between the two groups of learners. Although there was a constant shifting of tense, it was found that such variation was systematic. Factors influencing past tense making were discussed in the light of findings which focused on semantic categories of verbs, lexical-aspectual marking and contextual frames. There was a comparison of common features and differences found in the data and research. Next, Gisela (2006) studied “Acquisition of English Grammatical Morphology by Native Mandarin-Speaking Children and Adolescents: Age-Related Differences” The purpose was to investigate the acquisition of six English grammatical morphemes (i.e, regular and irregular past tense, 3rd person singular, progressive aspect-ing, copula BE, and auxiliary Do) by 10 native Mandarin-speaking children and adolescents in the United States (arrived in the United States between 5 and16 years of age). The goals were to chart and compare the acquisition trajectories and level of mastery across the morphemes, identify when age- related differences emerged and which forms they took. The method in this study is that morphological proficiency was measured by the accuracy of these morphemes in obligatory contexts during spontaneous speech. 17 The results indicated the morphemes were mastered by different numbers of participants and showed different growth trajectories. Performance variance was partially predicted by age of arrival (AoAr) in the United States, with early arrivals achieving greater proficiency than late arrivals. However, such AoAr effects took several years to occur and only existed or two of the six morphemes (i.e., 3rd person singular and regular past tense). Growth curve analysis revealed that language environment was a stronger predictor of individual differences than AoAr. The results also indicate that the acquisition of some grammatical morphemes by school-aged immigrants takes several years to complete. As L2 learners exhibit some error types and difficulties similar to monolingual children with specific language impairment, caution needs to be taken when interpreting and using morphological errors as indicators of speech/language learning problems in this population. Finally, Kielar (2008) studied “Priming English Past Tense Verbs: Rules or Statistics?”. He said that there was a key question in language processing concerning the rule-like nature of many aspects of grammar. A lot of research on this topic has focused on English past tense morphology, which comprises a regular, rule like pattern (e.g., bake/baked) and a set of irregular forms that defy a rule – based description (e.g., take/took). Previous studies have used past tense priming to support the theory that the two forms are processed using different cognitive mechanisms. In this study, they investigated this distinction more closely, focusing specifically on whether the regular or irregular distinction is categorical or graded. Priming for regular and irregular forms was compared, as well as for forms that are irregular but display a partial regularity (suffixed irregular verbs, e.g. sleep/slept). Participants performed a lexical decision task with either a masked visual (Experiment 1) or an auditory prime (Experiment 2). They also manipulated prime-target ISI (0 vs. 500ms), given that previous studies indicated that this factor might also influence the magnitude and quality of effects. They observed priming effects for both regular and irregular verbs; however, the degree of priming of both was influenced by prime modality and processing time. The prime was masked and presented for 66ms regulars and suffixed irregulars patterned together, and were different from vowel 18 change irregular forms. As the processing time increased (using longer ISI or cross modal presentation), all morphologically related words showed facilitation. The results suggest that priming arises as a convergence of orthographic, phonological and semantic overlap that is especially strong for morphologically related words. After considering the research findings from both Thai and other country‟s scholars, it is shown that mostly they studied the second language acquisition on auxiliaries of tenses, regular and irregular verb forms, tense concept understanding, tense usage, tense markers and subject verb agreement analysis. The present perfect understanding among Thai students is not clear, as little research has been done about it. Therefore, the problem of present perfect learning should be studied as it will help English teachers discover how teaching material and methods should be developed. CHAPTER THREE METHODOLOGY This chapter describes the design and procedure used to conduct this study. It contains information about subjects, the instrument of study, as well as the data collection process and data analysis process. 3.1 SUBJECTS The population of this study was 55 11th grade students in academic year 2010 at Satri Wat Rakang School, located in Bangkok, Thailand. The subjects were 11th grade students who were studying in the major of English – Math, which focuses on developing the ability to use English to communicate effectively. The subjects had attained B and C grades from E31102 (English foundation) in the previous semester. 3.2 INSTRUMENTS 3.2.1 The Types of Research Tests The instrument used in this study consisted of three types of proficiency tests. They were as follows: 3.2.1.1 Multiple choice test consisting of 20 items with 4 choices - This part was to test the ability to understand adverbs indicating tense, such as since, for, already, yet, ever, just and never. 3.2.1.2 Fill in the blank test consisting of 23 blanks - This part was to test the ability to use auxiliary verbs (have/has) with subject agreement, the ability to use the present perfect in proper situations and use the correct form of regular and irregular forms of the past participle. 3.2.1.3 Making a present perfect sentence consisting of 10 items 20 - This part was to test the knowledge of grammar structure in the form of the present perfect tense. There were three types of the sentences, affirmative sentences, negative sentences and questions. 3.2.2 Test Construction In constructing the tests, the researcher went through the following steps: 3.2.2.1 Choose the test types. The instruments chosen were multiple choice test, fill in the blank test and making the sentence test because multiple choice test has an apparent advantage in terms of objectivity and ease of administration and scoring. Fill in the blank tests and making the sentence tests have been shown to be a highly valid and reliable method of measuring the level of ability of present perfect tense usage. (Oller, 1979). The multiple choice of this research test consisted of 20 multiple choice items, each with 4 choices. The fill in the blank test consisted of 20 items with 23 blanks. The making the sentence test consisted of 10 items. All tests were developed from the following books: 1. English Grammars in Use, Cambridge University Press by Raymond Murphy, 2002. 2. Focus on Grammar: Teacher’s Manual, Addison –Wesley Publishing Company, by Margaret Bonner 1994. 3. Advanced English Grammar for High Learners by Samran Khumying 3.2.3 The Main Study Population and Subjects The subjects were 55 11th grade students studying in the major of English and Mathematics at Satri Wat Rakang School, who had a B or C grade from E31102 English foundation when they were 10th grade students. 3.3 COLLECTING THE DATA 21 The multiple choice test, fill in the blank test and making the sentence test were distributed in English class by hand to 55 subjects who were in 11 th grade at Satri Wat Rakang School. They were given 30 minutes to complete the tests and return them at the end of the class. The reason for selecting this grammar point was that the present perfect is one of the problematic grammar points for Thai students. This research will help teachers to find better techniques for teaching the present perfect tense. 3.4 SCORING OF THE TESTS The answer sheets of the multiple choice test were scored by computer. A correct answer was worth 1 point and there was no penalty for guessing. The answer sheet of the fill in the blank test and making the sentence test were checked manually. A correct answer was worth 1 point. 3.5 DATA ANALYSIS Percentage was used for data analysis to organize and categorize the data. The multiple choice, fill in the blank test and making the sentence test were collected. The result of these test are presented as follows: 1) Multiple choices test 1.1 Summary of number of correct and incorrect answers found in multiple choice test 1.2 Summary score that student got 1.3 Summary of the answers (each chosen multiple choice A,B,C,D) 2) Fill in the blank test 2.1 Summary of total correct answers found in fill in the blanks test 2.2 Summary of total score from each student in percentage 2.3 Summary of total students that could answer each question correctly (fill in the blank test) 3) Making the sentence test 3.1 Summary of total correct answers found in making the sentence test 22 3.2 Summary of total score from each student in percentage 3.3 Summary of total students that could answer each question correctly (Making sentences in order) To analyze the data obtained from all completed questionnaires, SPSS program version 15 was used. To process the data and analyze answers from the respondents, descriptive statistical analysis (percentage, mean and statistic deviation) was applied. The percentage, mean and standard deviation (SD) were used to analyze all variables for each section of questionnaire. CHAPTER FOUR RESULTS This chapter will present the findings and the summary tables of findings (numbers) for each topic derived from results of descriptive data analysis. The proof of reliability (figures that prove the degree of consistency or reliability of this research), validity of findings and the completed details of results (all figures) can be seen from the tables and frequency tables of all variables measured in appendix C (results of descriptive data analysis). The results were obtained from the completed answers of 55 respondents in the multiple choice test, fill in the blank test, and making sentence test done by 11th grade students of Satri Wat Rakang School. 1. Comprehension of present perfect time marker There were twenty questions in the test. The subjects of the sentences in the multiple choices were time markers: since, for, yet, already, ever, ago, never, ago. Table 1.1: Summary of Number of Correct Answers Found in the Multiple Choices Tests QUESTION NO. TOTAL CORRECT PERCENTAGE ANSWERs 1 54 98.20 2 54 98.20 3 48 87.30 4 48 87.30 5 55 100.00 24 QUESTION NO. TOTAL CORRECT PERCENTAGE ANSWERs 6 55 100.00 7 54 98.20 8 55 100.00 9 25 45.50 10 26 47.30 11 54 98.20 12 16 29.10 13 54 98.20 14 51 92.70 15 46 83.60 16 31 56.40 17 46 83.60 18 41 74.50 19 54 98.20 20 55 100.00 From the findings above, the highest percentage (100%) of students answered 4 questions correctly. 1) Question no. 5, The film started 30 minutes _............ 25 The aim of this question was to test the ability to recognize a situation that already happened and the right word had to be “Ago” at the end of sentence. “Ago” would be the only choice that could be fit in the sentence. 2) Question no. 6, Suda : What are you going to do? Sudjai : I don’t know. I haven’t decided…………_. The purpose of this question was to test how to use negative sentence of the present perfect. “Yet” is the correct answer. Fred and Sue have lived in Miami………1990. 3) Question no. 8, This question tested a use of “since ” when year is provided in the sentence. 4) Question no. 20, …… to one of these seminars? The question was designed to test comprehension of using an appropriate word to make a question sentence by using “Have you ever….” at the beginning of the sentence. The second highest percentage (74.5% - 98.20%) that student could answer question correctly were questions no. 1, 2, 3, 4, 7, 11, 13, 14, 15, 17, 18 and 19. For example : A: Do your math homework first, ok? Question no. 15, B: I’ve …….. done my math. I’m doing my spelling now. The students were tested on how to use “already” in the sentence to explain the mission. The third highest percentage of students that could choose the correct choice ranged from 45.50% – 56.40% which were questions no. 9, 10, and 26. For example: - Question no. 10, Fred is a construction worker. He’s worked in the construction business ……………. He graduated from high school. 26 The respondents were tested for the comprehension in using for + total period of time. The lowest percentage of students that could choose the correct answer on question no. 12 was 29.10%. The question was not the most difficult question to test present perfect (has/have + V.3). However, only 16 students from 55 students chose the correct answer. - Question no. 12; When …….. they ……married? Five years ago. In conclusion, from the multiple choice section, students who had the highest score to the lowest score from 20 questions are broken down as below in table 1.2: Table 1.2: Summary of total scores from each student by percentage TOTAL CORRECT TOTAL STUDENTS PERCENTAGE 14 2 3.60 15 6 10.90 16 11 20.00 17 23 41.80 18 11 20.00 19 1 1.80 20 1 1.80 รวม 55 100.00 ANSWERS Mean = 16.76, S.D.= 1.17 27 Only one student could answer all 20 questions and 19 questions correctly, which accounted for 1.80%. There were 11 (20%) students who could answer 18 questions correctly. Most students (23 students / 41.80%) got 17 right. 11 students (20%) could answer 16 questions and 6 students (10.90%) could answer 15 questions correctly. The lowest score on this multiple choice test was 14, which was 3.60% and there were 2 students at this rank. The following section present an in-depth analysis of students’ knowledge about the present perfect tense in using for, since, never, yet, already, ago, has/have +V3, and ever that. The results will show the breakdown of each type of wording that students could make a correct judgment on. Table 1.3: Summary of the answers (each chosen multiple choice A,B,C,D) Question no. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 For* X For Already Done Already Just Ever *X For Just Just For *X was/got just for *x for 98.20 1.80 9.10 1.90 98.20 50.90 98.20 1.80 92.70 16 17 for for 18.50 18 for 19 20 wait During Never Before For Been Long Gone Since *X Ever Ever Already did/got yet already already *x since already *X already *X waited 1.80 1.80 7.50 1.80 100.00 54.50 69.10 5.50 83.60 Since Since *X For Just For Since Just Yet Since Since *X Since have/got *X Since* X since since 98.20 1.80 47.30 1.80 29.10 98.20 1.80 24.10 83.60 yet *X since 57.40 74.50 since 3.60 1.80 has waited yet yet Since* X Yet* X Ago* X Yet* X Yet ever For*X for Never has/got never never never 87.30 90.60 100.00 100.00 45.50 1.80 1.80 16.40 never never 16.40 never 21.80 have waited*X 98.20 100.00 *X = correct answer According to table 1.3, firstly, comprehension of using “since” in the present perfect sentence, most of the students had the ability to use “since” in the present simple tense correctly. For instance, for question no. 8, all students could do this 28 question correctly, which accounted for 100%. The second highest percentage was 98.20% for questions no. 2 and 13, and the third highest percentage was 87.30% for question no. 3. On the other hand, question no. 10 was the most difficult as only a few of them (lowest percentage, 47.30%) chose the correct answer. Secondly, for the use of “already” in the present perfect in the proper situation, it can be seen for questions no. 15 and 17 that most of the students could answer correctly, which accounted for 83.60%; meanwhile, question no. 18 had the lowest percentage (74.50%) of correct answers. Thirdly, for the use of “yet” in the present perfect on question no. 6, all respondents could answer it correctly, and for question no. 4, only 57.40% could answer it correctly. Fourthly, it appears that none of the respondents could provide the right answer for all the questions which required the use of “for”. However; 98.22% of students were able to use “for” correctly in the test. Lastly, most of the students were able to use has/have + V3, which accounted for 98.30%. In contrast, only 29.10% could answer question no. 12 correctly. 2. The ability to use auxiliary verbs (have/has) with subject agreement and use the correct regular and irregular forms of the past participle There were 20 questions that required students to fill in the words in blanks. The purpose of this test was to test the ability to use modal verbs (has/have) with subject agreement, the ability to use the present perfect in proper situations and use the correct regular and irregular forms of the past participle. Table 2.1: Summary of total correct answers found in the fill in the blanks test QUESTION NO. TOTAL STUDENTS PERCENTAGE 1 54 98.20 29 QUESTION NO. TOTAL STUDENTS PERCENTAGE 2 29 52.70 3 48 87.30 4 42 76.40 5 53 96.40 6 54 98.20 7 26 47.30 8 52 94.50 9 41 74.50 10 55 100.00 11 50 90.90 12 53 96.40 13 38 69.10 14 55 100.00 15 55 100.00 16 54 98.20 17.1 55 100.00 17.2 55 100.00 17.3 51 94.40 18 55 100.00 30 QUESTION NO. TOTAL STUDENTS PERCENTAGE 19 51 92.70 20.1 53 96.40 20.2 52 94.50 According to table 2.1, there were 6 questions, no. 10, 14, 15, 17.1, 17.2, and 18, that all students (100%) could answer correctly. For example: 1) Question no. 17.1, “A: …Have…..you…seen…(see) Suda lately?” The purpose of this question was to test the ability to use the present perfect in a question form (Has/Have + Subject + V3 + Object + Adverb of time?) and the correct form of regular and irregular verbs. 2) Question no. 17.2, “B: Yes, ……I have…… I saw her yesterday.” The participants were tested on how to answer when they were asked a present perfect question. The second highest percentage (87.3% - 98.20%) that students could answer correctly were questions no. 1, 3, 5, 6, 8, 11, 12, 16, 17.3, 19, 20.1 and 20.2. For example: - Question no. 3, “I…have lost……. (lose) my purse. I can’t find it anywhere. The aim of this question was to test the knowledge of using modal verbs (has/have) with subject agreement and using regular of past participles (add –ed at the end of verb). The third highest percentage of students that chose the correct choice (range from 52.70% – 76.40%) were for questions no. 2, 4, 9, and 13. For example: Question no. 9, “The hen …has laid……. (lay) its eggs almost 10.” 31 The purpose of this question was to test the ability to use modal verb (has/have) with subject agreement and using irregular forms of the past participle. The lowest percentage of students who could choose the correct answer was question no. 7 at 47.30%. This question tested the knowledge of using irregular forms of the past participle as the others questions, but only 26 students could answer it correctly. Table 2.2: Summary of total scores from each student by percentage TOTAL CORRECT ANSWERS 13 17 18 19 20 21 22 23 total TOTAL STUDENTS PERCENTAGE 1 3 3 5 9 11 17 5 54 Mean = 20.61, S.D.= 1.92, missing = 1 1.90 5.60 5.60 9.30 16.70 20.40 31.50 9.30 100.00 According to table 2.2, there were 5 students who could answer all the questions correctly, which accounted for 9.30%. Most of the students (17 students, 31.50%) could answer 22 question correctly. 9 students (16.70%) got 20 right and 5 students (9.30%) could answer 19 questions. There were 3 students who got 18 correct answers, which accounted for 5.60% and 17 correct answers. There was only one student who got the lowest score on this fill in the blank test, and it accounted for 1.90%. However, one student did not finish the test 32 Table 2.3: Summary of total students that could answer each question correctly (fill in the blank test) QUESTION NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17.1 17.2 17.3 18 19 20.1 20.2 PERCENTAGE 98.20 52.70 87.30 76.40 96.40 98.20 47.30 94.50 74.50 100.00 90.90 96.40 69.10 100.00 100.00 98.20 100.00 100.00 94.40 100.00 92.70 96.40 94.50 As can be seen from the above table, most of students understood how to use modal verb (have/has), with subject agreement and using the correct regular and 33 irregular forms of the past participle. All of the students could answer questions no. 10, 14, 15, 17.1, 17.2 and 18, which accounted for 100%. On the contrary, only 47.30% of the students could answer question no. 7 correctly. 3. The comprehension of using grammar structure in the form of the present perfect tense. There were three types of the sentences, affirmative sentences, negative sentences and questions in the making the sentence test. The students were given words to write sentences in the present perfect form as follows: 1) Affirmative sentence (Subject + has/have + V3 + object) 2) Negative sentence (Subject + has/have + not + V3 + Object) 3) Question sentence (Has/Have + Subject + V3 + Object?) Table 3.1 Summary of total correct answers found in the making the sentence test QUESTION NO. 1 2 3 4 5 6 7 8 9 10 TOTAL STUDENTS 49 55 36 20 43 45 34 51 37 52 PERCENTAGE 89.10 100.00 65.50 36.40 78.20 81.80 61.80 92.70 67.30 94.50 According to table 3.1, there was only one question which all students could write correctly (55 students/100%). The question is “She/be/in myroom” room” (the answer “She/be/in my beenininmy my room.). room. is She She hashas been The aim of this question is to test the comprehension in making affirmative sentences in the form of present perfect tense. 34 The second highest percentage (81.80% - 94.50%) that students could answer correctly were questions no. 1, 6, 8 and 10. For example: Question no. 6; The students were tested for the ability to write question sentences in the present Q6. “Marilyn/pay/the (que “Marilyn/pay/the billbill (question)” (The answer is HMarilyn paid ) Has Marilyn paidthe the bill?) bill? The third highest percentage (61.80% - 78.20%) that students could answer correctly were questions no. 3, 5, 7, and 9. For example: Question no. 9: The respondents were tested the knowledge in writing negative sentence by using has/have + not + V3 + Object and the comprehension of regular and irregular verb forms for the past participle. Q9. ran “Aran andand Jack/ Jack/not/ not/ feed feed their t hamster” (The answer is an and Jack not not fedfed their hamster.) Aran and have Jack have their hamster. ) The lowest percentage (36.40%) that students (20 students) could answer “I/live/Paris/when/I/be/a child” correctly is question no.4. The question is I/live/Paris/when/I/be/a child” and the answer is have“Ilived in Paris when I was have lived in Paris when I wasa achild”. child”. Table 3.2: Summary of total scores from each student by percentage TOTAL CORRECT ANSWERS 4 5 6 7 8 9 10 total TOTAL STUDENTS PERCENTAGE 1 4 8 8 18 10 6 55 Mean = 7.67, S.D.= 1.49 1.80 7.30 14.50 14.50 32.70 18.20 10.90 100.00 35 According to table 3.2, there were 6 students who answered all the questions correctly, accounting for 10.90%; 10 students (18.20%) answered 9 questions correctly. Most of the students (18 students, 32.70%) could answer 8 questions correctly. There were 8 students (14.50%) who got 7 and 6 scores. Four students (7.30%) could answer 5 questions. Only one student got the lowest score (4 scores), which accounted for 1.80%. Table 3.3: Summary of total students that could answer each question correctly ( Making sentence in order) QUESTION NO. Affirmative Sentence 1 2 8 Negative Sentence 3 9 10 Question Sentence 5 6 7 Complex Sentence 4 TOTAL STUDENTS PERCENTAGE 49 55 51 89.10 100.00 92.70 36 37 52 65.50 67.30 94.50 43 45 34 78.20 81.80 61.80 20 36.40 According to table 6, students understood how to use modal verb (has/have) with subject agreement, but they could not use regular and irregular verbs appropriately. When students wrote question sentences in the present perfect, many of them did not change the form of the main verb to the past participle. For example, for question no. 7, only 61.80% could answer correctly. 36 Moreover, most of the students used correct grammatical structure in writing affirmative sentences. The percentage of the students shown in the part of making affirmative sentence was 100%. In addition, students had good knowledge of using modal verbs (has/have) in the present perfect when they wanted to write negative sentences. However, some of the students did not understand how to change the verb form in the present perfect tense. For instance, for question no. 9, only 67.30% could make a correct answer. Lastly, only 36.40% of the students had the ability to write a complex sentence which combines the present perfect and past simple tense (Subject + has/have + V3 + object + when + subject + V2 + Object). Most of them used present perfect with the present perfect for complex sentences, which is not correct. CHAPTER 5 CONCLUSION, DISCUSSION, AND RECOMMENDATION In this chapter 5.1 Summary of the study 5.2 Summary of the findings 5.3 Discussion 5.4 Conclusion 5.5 Recommendations for further research 5.1 SUMMARY OF THE STUDY 5.1.1 This study aimed to analyze and classify errors in the area of present perfect. This study was conducted to find out how much the subjects understand about present perfect tense including: 1) Adverb of time in present perfect tense namely; since, for, already, yet, ever, never, and ago. 2) Regular and irregular forms of past participle verbs used in the present perfect tense 3) Modal “has/have” with subject agreement 4) Grammatical structure 5.1.2 Three types of research tests 1) The multiple choice test consisted of 20 questions, comprised of time markers used in the present perfect, including: since, for, already, yet, ever, never, and ago. This test was to study how much students understood adverbs of time in the present perfect tense. 2) Fill in the blanks test consisted of 20 questions. The purpose was to find out how much the subjects understood the aspect of the present perfect tense “has/have + verb of past participle.” Regular and irregular verbs in this study 38 were “come, bake, lose, run, turned, out, teach, work, lay, see, studied, write, be, live and go”. 3) Making the sentence test consisted of 10 questions. The purpose was to test the knowledge of grammatical structure in the form of the present perfect tense. There were three types of present perfect sentences, which were affirmative sentences, negative sentences and questions. 5.2 SUMMARY OF FINDINGS The results of the three types of tests for errors in the area of the present perfect were as follows: 1. From the study, most of subjects were able to use adverb indication in the present perfect. The highest percentage of the students who could answer the multiple choice test correctly was 100% and the lowest percentage was 29.10%. 2. From the study, most of subjects had the ability to use auxiliary verbs (have/has) with subject agreement and use the correct regular and irregular forms of the past participle. The highest percentage of the students who could answer the fill in the blanks tests correctly was 100% and the lowest percentage was 47.30%. 3. From the study, most of the subjects were able to use grammatical structure in the form of the present perfect tense. The highest percentage of the students who could answer the making the sentence test was 100% and the lowest percentage was 36.40%. 4. From the study, most of the subjects were able to use auxiliary verb (has/have) with the past participle. On the other hand, some of them could not use the past participle correctly, for example, taught (V3 of teach). 5. From the study, the subjects had the ability to write question sentences and negative sentences in the form of the present perfect, although some of them could not use the regular and irregular verb forms in the present perfect tense correctly. The most frequent errors were not changing the present participle to the past participle. 6. From the study, the subjects did not understand how to use the present perfect tense with past simple tense in compound sentences. Many of them used the 39 present simple tense with the present simple tense or the present perfect tense with the present simple tense instead. 5.3 DISCUSSION According to the results of the study in chapter four, the errors of present perfect tense usage by the subject can be summarized as follows: Referring to the summary of table 1.3, the errors in using adverb indication in the present perfect tense from multiple choice tests suggest that although Thai language does not have tense and auxiliary verbs in interrogative and negative sentences in the present and past tense, most of the students (80%) had a good understanding about the present perfect time markers (since, for, already, yet, ever, never, and ago). This finding is similar to the previous research conducted by Muttavankul (2003), which revealed that there is no tense marker in Thai; in addition, Pensri Rungsriyakul (1993) wrote that in Thai, adverbs of time are used to express the change of time both in present and past actions or events while English speakers express time through verb inflections (as in the past “was/were”, the present is/am/are, the future “will” and the perfect “has/have”). She further stated that English has a large number of verb inflections, whereas Thai does not have this language aspect. In English, the form of verb is changed when the tense and time are changed. On the contrary, looking in depth at the wrong answers that were chosen in the fill in the blanks and making the sentence test show that students had difficulty in transforming the present participle to the past participle. For example, on question no. 7 from the fill in the blanks test, there were only 27 students who could answer this question correctly. The most common error was misusing the past participle. Students did not change “teach” in the present participle to “taught” in the past participle appropriately. This error may have been caused by EFL teachers at the beginner level not putting enough emphasis on regular and irregular verbs in the past participle. Thus, this gradually resulted in Thai students forgetting the rule of verb 3. Richards and Platt (1997) claimed that when learners repeatedly make errors without being corrected, those errors became permanent (fossilization) and are difficult to correct. 40 In addition, based on the study of Yuttasak Arakkitsakul (2008), some sources of error that occurred in this study refer to infrequent practice with using grammar rules in both writing and speaking. In real situations, Thai students study long lists of the present perfect tense, but their knowledge of grammar does not help when they attempt to write a word. Harmer (1998) explained that the students acquire language through practice. Even though children are better at studying language than adults, they might easily forget the rules if they do use them. It is very important for students to have a solid knowledge of V3 since secondary school so that they can apply V3 when they use present perfect tense in writing and speaking. 5.4 CONCLUSION The results of this study provide interesting information about the difficulties in the use of the present perfect tense which occurred in the multiple choice test, fill in the blanks test, and making the sentence test. From the findings, it can be concluded that most of students were able to use the present perfect tense and had the ability to use adverb indications in the present perfect. The grand total of the students that could answer the multiple choice test (part 1) correctly was 83.82%. This shows that the students had a good knowledge of how to use all types of time markers in the present perfect tense. In part 2 (fill in the blanks test), 89.61% of the students could provide a correct answer. It can be seen that most of subjects had the ability to use auxiliary verbs (have/has) with subject agreement. In part 3, 76.73% answered the questions in the making the sentences test. The results show that one in four were weak in using grammatical structure in order to organize sentences in the form of the present perfect tense. It is thus likely that students will have difficulty creating a correct present perfect tense sentence in everyday life. 5.5 RECOMMENDATIONS On the basis of this study, the following is recommended for further research: 41 5.5.1 Because there were many errors found in the tests, especially tense usage, it would be beneficial to conduct more research in these areas to find out more about English speaking. 5.5.2 Further study is required on analyzing errors made at other levels, such as primary, secondary and adults who work in offices. The research findings at various levels and with different subjects will give a clearer picture of present perfect tense understanding among Thai people. 5.5.3 The problem of present perfect tense learning in adverbs of time, past tense and present perfect tense and irregular verb forms of verb 3 also needs further study. In this study, the chosen irregular verbs were very limited. Thus, other words need to be studied to find out how much Thai students understand about transforming the present participle to the past participle in the present perfect tense. 5.5.4 There should be a comparison of the subject’s understanding of the present perfect tense between learning the present perfect tense through context and the traditional Thai style of teaching a particular point. The purpose of the research would be to develop the teaching methods of the present perfect tense for Thai students. REFERENCES Azar, B. S. (2003). Understanding and using English grammar. Pearson Education Indochina. Bennui, P. (2008). A study of L1 Interference in the writing of Thai EFL students. Malaysian Journal OFELT Research(4), 31. Brown, R. (1973). A first language: The early stage. Massachusetts: Harvard University Press. Chaiyarata Chalao. (1961). A comparative study of English and Thai Syntax. Bloomington: Indiana University Press. Charas Ubol. (1981). 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Nitaya Kanchanawan. (1987). Expression for time in the Thai verb and its application to Thai-English machine translation. Unpublished doctoral Dissertation, University of Texas at Austin, Austin. 43 2 Koo, S.L., & Koh, L. (1994). The use of present simple tense and present perfect tense of Singapore college students. http:ericae.net/ericdb/ej27246.html Littlewood, P. (1995). Foreign and second language learning. Cambridge: Cambridge University Press. Odlin, T. (1989). Language transfer. New York: Cambridge University Press. Charuporn Pongsiriwet. (2001). Relationships among grammatical accuracy, discourse, features, and the quality of second language writing: The case of Thai EFL learners. West Virginia University, Morgantown, West Virginia. Ravipim Itiravivong (2002). An error analysis of present and past simple tense: Case study of employees at Procter and Gamble Manufacturing (Thailand). Unpublished master’s research paper, Thammasat University, Language Center, Teaching English as a Foreign Language. Pornsiri Singhapreecha. (2000). The acquisition of case, tense, and agreement features: A study of Thai learners of English. The city university of New York, New York. Sumitra Angwatanakul. (1975). Linguistic Link, Chulalongkorn University Book Center. Upsorn Tawilpakul. (2001). The use of English tense by Thai university students. Thammasat University. Yuttasak Arakkkitsakul. (2008). An error analysis of present perfect tense case study of freshman students at Nakhon Si Thammarat Rajabhat University: Academic year 2008. Thammasat University, Bangkok. 443 APPENDIX A Research Test Multiple Choice Test Choose the best answer 1. She arrived in London three days ago. She has been there _______ three days a. for b. during c. since d. yet a. He´s worked for that company _______ last June. ever a. for b. never c. since d. yet 3. I haven’t seen my parents ……………….last Christmas. a. already b. before c. for d. since 4. I’d like to borrow this book. Has Anna read it ………..? a. done b. for c. just d. yet 5. The film started 30 minutes _______. a. already b. been c. for d. ago 6. Suda : What are you going to do? Sudjai : I don’t know. I haven’t decided …………………….. a. just b. long c. since d. yet 45 4 7. Have you ………..done any skiing? a. ever b. gone c. just d. yet 8. Fred and Sue have lived in Miami ……………………… 1990. a. For b. since c. yet d. ever 9. Sue works at the University of Miami. She’s worked there………………years. a. just b. ever c. never d. for 10. Fred is a construction worker. He’s worked in the construction business ………………he graduated from high school. a. just b. ever c. since d. for 11. Sue’s on vacation now. She hasn’t been to work…….a week. a. for b. already c. since d. never 12. When _______ they _______ married? Five years ago. a. was / got b. did / got c. have / got d. has/ got 13. They have been arguing about this ………………..last Monday. a. just b. yet c. since d. never 14. We’ve been listening to them talk about this problem…………………..days now. 46 5 a. for b. already c. since d. never 15. A : Do your math homework first, ok? B : I’ve …………….done my math. I’m doing my spelling now. a. for b. already c. since d. never 16. A : Is Laura home? B : No, she’s not. Her plane hasn’t arrived ……………………. We’re expected her in about two hours. a. for b. since c. yet d. never 17. A : Is Tom feeling better? B : Yes, in fact, he has ………………….. recovered from his cold. a. for b. already c. since d. never 18. It’s only 12.30. Has he …………………gone back to work? a. for b. already c. since d. never 19. We __________ for this seminar since last year. a. wait c. has waited b. waited d. have waited 20. __________ to one of these seminars? a. Do you ever come ever b. Did you ever came c. Did you ever come d. Have you ever come 47 6 Cloze Test Complete sentence by using the verb in parentheses with present perfect form. 1. The president ………………..… (came) out of the building and is going to make a speech 2. …………………..….. (bake) your own bread? No but I might try it sometime. 3. I…………………..…… (lose) my purse. I can’t find it anywhere. 4. Joanne………………………….. (run) away from home. But she came back two days later. 5. Someone…………………... (turn) on the hi-fi. I can hear it. 6. My mother………………….……. (put) a carrot in her soup. 7. Kru Somsri …………………… (teach) English at Saint Gabriel School for 25 years. 8. I……………………..…….(work) at Bank of Ayudhya since 1992 9. The hen…………………..……. (lay) its eggs almost 10. 10. My students………………………….what I taught them yesterday. 11. A: “Transformer” is a great movie. B: I know, I…………..…….. (see) it five times and I still enjoy it. 12. A: Shawn and Teresa are good students. B: It’s true. They…………..……. (study) very hard this semester. 13. A: I…………………. (write) to my family since March. B: Why don’t you write to them right now. 14. A: Let’s go to the art museum this Saturday. B: Good idea. I…………….……… (be) there for a long time. 15. A: What kind of work do you do? B: I……………………. (be) a teacher for fifteen years. 16. A: How long has Sharon lived in San Francisco? B: She………….……… (live) there for six months. 17. A: ………….………you…………….…… (see) Suda lately? B: Yes,……………….. I saw her yesterday. 18. It………….……….. (be) my favorite neighborhood restaurant since a long time. 48 7 19. Bob…………..(be) in Montreal since last Tuesday. 20. ……………..Jane……………camping? (ever go) --------------------------------------------------------------------------------------Making the sentence test Write sentences in present perfect simple. 1. They / ask / a question. _______________________________________________________________ 2. She / be / in my room. _______________________________________________________________ 3. Annie / not / forget / her homework _______________________________________________________________ 4. they / finish / their homework (question) _______________________________________________________________ 5. Marilyn / pay / the bill (question) _______________________________________________________________ 6. we / not / wash / the car _______________________________________________________________ 7. You / ever / live / Paris (question) _______________________________________________________________ 8. I / never / visit / Louvre. _______________________________________________________________ 9. I / live /in Paris / when / I / be / a child _______________________________________________________________ 10. Aran and Jack / not / feed their hamster