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.
0 condional
When Mary comes she leaves such a mess.
If water is cold you may get ill easly.
1st conditional
If you ask me what the fifth interval is, I will tell you ;-)
2nd conditional
If I were famous I would be so happy
3rd conditional
If only I had known that Peter weren't gay I would have married him.
3+2 conditional
If only I hadn't invest so much money in funds I wouldn't be broke now
Is that correct, Seanus? :)