Abstract-Nowadays emphasizing linguistic competence is not a sufficient path to reach a target-like communicative competence. Pragmatic competence should be put emphasis on as well. The importance of learning speech acts which is one aspect in the pragmatics is clear to those who want to learn a second or foreign language. This study after investigating the interest of language learners in the acquisition of appropriate use of second language speech acts, traces the variation over time in the use of speech act of request in Iranian EFL University students and for further clarification a group of non-language University students. The results showed no effect of time on the appropriate use of speech act "request".