Most EFL learners have difficulty during the process of second language acquisition, for they cannot output the available and appropriate grammatical form of target language. This article tends to clarity the acquisition of present aspect during second language acquisition. This paper also shows an analysis of the errors of the perfect aspect in EFL learners’ language output.EFL learners have to spend much time understanding language transfer of L2, for it is a major cause of difficulties in the acquisition of English tense by EFL learners. The purpose of this paper is to illustrate the acquisition of present perfect tense.(1)Analyze f grammatical error of present perfect tense.(2) Illustrate the role of L1 in the acquisition of present perfect tense.
