Analysis of Errors in the Use of Prefixes in Negotiation Texts of Grade X Students of Vocation High School

Nur Intan Siregar (Indonesian Language Education Study Program, Muhammadiyah University of South Tapanuli, Padangsidimpuan)
Devinna Riskiana Aritonang (Indonesian Language Education Study Program, Muhammadiyah University of South Tapanuli, Padangsidimpuan)
Nikmah Sari Hasibuan (Indonesian Language Education Study Program, Muhammadiyah University of South Tapanuli, Padangsidimpuan)

IDEAS: Journal on English Language Teaching and Learning, Linguistics and Literature
Vol. 14 No. 1 (2026): IDEAS: Journal on English Language Teaching and Learning, Linguistics and Lite

This study aims to describe the errors in the use of prefixes in negotiation texts of class X students of SMK Negeri 1 Sipirok. The method used is descriptive qualitative. The data are in the form of negotiation texts written by 26 class X Hospitality students with 11 male students and 15 female students. The results of the study show that there are 38 errors in the use of prefixes, namelydi- by 47.4%, me- 26,3%,to- 15,8%, Andter- 10.5%. Errors are caused by a lack of understanding of morphological rules and the influence of spoken language.