Examples of second conditional:       

If I had more time, I'd (I would) travel more.
I wouldn't (would not) refuse if you offered me $10,000!

Examples of third conditional:       

If I'd (I had) known you were coming, I would've (would have) waited for you.

Would you have done it if you'd (you had) known beforehand?

Us the words in brackets to complete the following sentences:
Example:  What (you/say) if you saw him?