Abstract:
The topic of this study is the problems are encountered by tertiary students in using relative clauses. The aims of the study are to direct the language students to master the utilization of the relative clauses. Show the learners how to utilize the relative pronouns correctly and shows how they use commas in relative clauses. In addition, it intends to guide the students to the best means which can lead them to overcome relative clauses errors. The researcher has followed the quantitative analytical method to conduct the study. Only one tool is used for data collection: students' test (St); they are fifty students from the fourth level. The results achieved in this study show that the students face problems in using relative pronouns; students do not know how to use commas within relative clauses; students are not aware of reducing relative clauses. The researcher recommends that students should extend their knowledge in grammar field; and they shouldn't just restrict their study on academic curricula; they should read books which contain relative clauses.
