past conditionals

Find the mistake in each sentence. Type the correct sentence into the box. Use short forms if possible.

example

If you'd arrived earlier you wouldn't not have missed the start.
If you'd arrived earlier you wouldn't have missed the start.

1	If I known he was coming, I wouldn't have gone out. .
2	What would have happened if the band might not have arrived? ?
3	If he'd listened, he would had known about the test. .
4	He would enjoy himself if he'd gone to the concert. .
5	If I had met you, my life would have fallen apart! !
6	I wouldn't have been so upset if she'd tell me the truth. .

Need help with this exercise? See natural English upper-intermediate student's book p.126 and p.173.