Analysis of Japanese Learners’ Mother Tongue Interferences in Speaking English Language

the use of the mother tongue can influence the production of spoken English, which covers the phonological, grammatical, and lexical aspects. This study aims to find out the interferences of the mother tongue with the result of a second language, which in this case is English. The method used in this study is qualitative descriptive, and the data is collected by observing and recording the data in the field. The data is students' utterances in English whose mother tongue is Japanese. The results show that the three aspects, which consist of the phonological aspect, grammatical aspect, and lexical aspect in the mother tongue, interfere with the speaking ability, which, in this case, speaking English ability.