1. If I had known that you were in hospital I (visit) you.

2. If I (know) that you were coming I'd have baked a cake.
3. If you (arrive) ten minutes earlier you would have got a seat.
4. You would have seen my garden at its best if you (be) here last week.
5. I wouldn't have believed it if I (not see) it with my own eyes.

6. I (offer) to help him if I had realized that he was ill.
7. If I (realize) what a bad driver you were I wouldn't have come with you.
8. If I had realized that the traffic lights were red I (stop).
9. The hens (not get) into the house if you had shut the door.
10. If he had known that the river was dangerous he (not try) to swim across it.
11. If you (speak) more slowly he might have understood you.
12. If he had known the whole story he (not be) so angry.
13. If I (try) again I think that I would have succeeded.
14. You (not get) into trouble if you had obeyed my instructions.
15. If I (be) ready when he called he would have taken me with him.
16. If she had listened to my directions she (not turn) down the wrong street.
17. If you (look) at the engine for a moment you would have seen what was missing.
18. I (take) a taxi if I had realized that it was such a long way.
19. You (save) me a lot of trouble if you had told me where you were going.
20. If you (not sneeze) he wouldn't have known that we were there.