A Study of Errors in Learning English Grammatical Structures on Tenses of MatthayomSuksa 4 Students of the Demonstration School, KhonKaen University

AbstractThe purpose of this research were to study grammatical errors in learning English structures on Tenses of the MatthayomSuksa four students. The research group consisted of 31Matthayom Suksa four student of the Demonstration School of KhonKaen University (Suksasart) in the second semester of the 2012 academic year. The data were collected by using three kinds of instruments, namely; a multiple choices test examining grammatical errors, a table recording each student's errors, and a survey interviewing those whose errors were found. The student's errors were subsequently analyzed to find the percentage. The results were presented in the from of a table with the description. The results showed the student's errors in learning English grammars on Tenses. There errors were found in respective twenty two grammar rules in seven tenses as follow: They were past perfect tense (87.1%), past simple tense (74.2%), present perfect tense (67.4%), past continuous tense (54.8%), present simple (48.4%), future simple tense (41.7%) and present continuous tense (32.3%)