In this lessons, you are going to learn how to use “Perfect Tense” in English. You know it is one of the most commonly used one among twelve tenses. So I’d like you to study sentences in this lessons carefully and enthusiastically. There are a lot of example sentences in the lessons and each of them represents the “Present Perfect Tense” in English Language. Therefore you can read them many times so that you can easily remember them and can use them when you need.