Where are they? 0, 1, 2, 3?
It will be easier if you check it in some site or encyclopedia. Too much and too basic to expain it here.
When Mary comes she leaves such a mess.
If water is cold you may get ill easly.
If you ask me what the fifth interval is, I will tell you ;-)
If I were famous I would be so happy
If only I had known that Peter weren't gay I would have married him.
If only I hadn't invest so much money in funds I wouldn't be broke now
Is that correct, Seanus? :)