تماشای ویدئو Learn English Tenses PRESENT PERFECT and PAST SIMPLE از آی-ویدئو

http://www.engvid.com/ Do you get confused using English tenses? In today's lesson, I teach you how and when to use the Present Perfect and Past Simple tenses. It's easy to confuse the two, and many English students make mistakes with these tenses. In this grammar lesson, you will learn how each one is used, how they are different from one another, and how to know which tense is correct for your sentence. English tenses can be difficult to master, but I'll teach you my quick and easy tips so
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