THE STUDY ON THE ACQUISITION ORDER OF ENGLISH MORPHEMES IN THE FIRST SEMESTER STUDENTS IN ENGLISH EDUCATION STUDY PROGRAM AT BANDAR LAMPUNG UNIVERSITY Yanuar Dwi Prastyo Mirza Ashari Fakultas Keguruan dan Ilmu Pendidikan, Universitas Bandar Lampung, Lampung, 35142, Indonesia Abstract The aim of this research is to find out the order of morphemes acquisition in the first semester students at English Education Study Program, Teacher Training and Education Faculty, Bandar Lampung University. The subjects of this research are twenty-one students in the first semester at English study program at Bandar Lampung University. Their ages ranged from 17-35 years old. They studied English as a subject in their schools for more than 7 years. To obtain the research data, picture based story is used and the subjects of the research are asked to write a story based on the picture given. From their writings, the acquisition of five English morphemes is analyzed. The result shows that the order of morphemes acquisition on the subjects of the research are 1) Plural (90.4%), 2) Past regular (85.7%), 3) Progressive (83.8%), 4) Past irregular (82.7%) 5) Third person singular (50%). Key words: English morpheme, Morpheme acquisition, Natural order. I. Introduction 1. The Purpose of The Study This study attempts to find out the acquisition order of English morphology in twenty five students on the first semester English Education study program at Bandar Lampung University. In this study, the researcher wants to find out whether the subjects also follow the natural order proposed by Stephen Krashen. For this purpose, the researcher has given them a story based picture to get their responses in creating the story based on the pictures. By using the pictures as a basis for the story, they will create a story based on those pictures and they will use some English morphemes in their story. By analyzing English morphemes used in their story, the researcher will get the order of morpheme acquisition happen in their mind. In this study the researcher will focus only on six English morphemes. They are progressive (-ing), plural (-s), past regular (-ed), past irregular, article (a, an, the), and third person singular (- s). 2. Rationale The order of English morpheme acquisition probably is the most popular topic researched in relation to the natural order hypothesis proposed by Krashen. This semester, the researcher teaches one subject namely “Principles of Language Acquisition” taught to the fifth semester students in English Education study program at Bandar Lampung University, and the researcher found that it is very interesting if the researcher can held a small research and find out the order of English morpheme acquisition on the subjects of the study. The natural order hypothesis states that we acquire the rules of language in a