GRAMMAR FOCUS:

THE SECOND CONDITIONAL

The second conditional is used to talk about things which are unreal (not true or not possible) in the present or the future -- things which don't or won't happen:

          Example                                                                         Explanation
If I were you, I would drive more carefully in the rain.  I am not you — this is unreal.
Paula would be sad if Jan left.             Jan will not leave — that's not going to happen.
If dogs had wings, they would be able to fly.Dogs don't have wings — that's impossible.