(1) If I WERE rich (I am not), I WOULD/COULD/MIGHT buy you a new car. "Were" is called the subjunctive (something that is in my mind. Not a reality). (2) If I WAS rich, I WOULD buy you a car. = used by many native speakers because (a) they did not learn the "correct" form or (b) they don't want to use it. BE CAREFUL: Use this only for the present or future. If Mona says: "You were very rude to