Abstract:
This study aimed at investigating the causes of errors in using conjunctions in writing among EFL undergraduate students. .the researcher Adopted the descriptive analytical method. The researcher used a questionnaire, the interview, and the test for EFL students as tools for collecting data. The population of the study consisted teachers of English language from Sudanese Secondary Schools, experts in teaching English language from Sudan University of Science and Technology (SUST) and third year English language students at (SUST). The data has been analyzed with SPSS program using descriptive and non-parametric methods. Some results include: using conjunctions in English language writing have positive effect on developing vocabulary among EFL students; it can help teachers to facilitate explanation of the meaning of new vocabulary and also enhance students’ ability in writing coherence.
Based on the results, the researcher recommended the following: English language teachers should take into account the importance of using conjunctions in teaching English language writing and also on all levels, English language teachers should be aware of the role of visual objects especially pictures and images in teaching English language conjunction, teachers should well trained on how to write an effective , well arranged texts and how to use conjunctions to make their students‟ writings more coherent, students should be encouraged to know how to interpret conjunctions in their writing classrooms’ activities because it can facilitate and understand the texts and make them well arranged and more comprehensible