I have some questions about the expression "a friend of mine" and I'm quite confused with it. Actually I have found some threads about this topic but they don't hit my point. I'm not a native English ...
He's a friend of mine. That's a car of his. Why do we use the possessive when the meaning would be the same while not using it (e.g. a friend of me and a car of him)? I thought maybe it is ...