1. If I had closed the window, the cat would not have jumped out.
2. Sandra will join us later unless she has a lot of work to do.
3. They would have helped us move house if we had asked them.
4. If I were you, I wouldn't drive in the snow.
5. John may win if he takes part in the contest.
6. If I had known him last year, I would have talked to him then.
7. If Bill comes home early, he will eat dinner with us.
8. If Jane were older, she could live by herself.
9. If Jack had a toothache, he would go to the dentist.
10. If you had not watched the film so late yesterday, you would not have been so tired.
11. I will tell him the news when he calls me.
12. You would not be punished so often if you did not talk back to your parents.
