Learn the present perfect tense quickly and easily! This 9-minute English grammar lesson covers formation, usage, and common ...

The concept of current relevance has been referred to in many discussions of the usage of the present perfect; however it is a difficult idea to teach because it deals with factors outside the present ...

High school students who plan to take the ACT must first master a number of grammatical rules for the English section. For many students, grammar is a dreaded subject, but it is a central portion of ...

Before means: at some unknown time before now. It does not say when. Therefore we would say: I know that chap. I've met him somewhere before. Have you been here before? ~ No, I've never been here ...