Error Analysis on Transforming Affirmative to Negative and Interrogative Sentences of Simple Present Tense� (A Case Study at the Second Year of SMP YAPERA Tangerang)

The aim of this research is to find out some errors made by the students in transforming affirmative simple present sentences into negative and interrogative ones, and identifying the causes of error made by the students. The subject of this research was the second grade of SMP YAPERA Ciledug. This research was conducted in the class VIII-5, the writer analyzed 20 students. In this research, the writer used a qualitative method in a form of descriptive analysis (percentage) that included observation, collecting the students� test, analyzing, and interpreting the data. For collecting the data the writer used instrument, the writer asked the students to do the test focused on transforming affirmative to negative and interrogative sentences of simple present tense. The test contains 10 questions, every question is divided into 3 parts, negative sentence, Yes/No Question, and WH question. The result of the research showed that the highest frequency of error was Verb tense error, there were 104 errors or 49.52 %. The writer then classified the errors into omission, addition, miselection, and misorder. Between the classifications of error above, the most frequent error was omission that reached 202 errors or 53.58%