Ответ:

1. If it hadn't been raining, we would've go to Cafe.
2. If I had time, I would've learn how to swim.
3. You would get into trouble if you'd piss off the dog while passing by.
4. If your message had not come, check if there's no troubles with connection.
5. If I were you, I wouldn't go to this party.
6. I should have not missed the lecture if I didn't fell into a puddle.
7. If I had seen her yesterday at the party, you would not believe me still.
8. You would not have been angry with us if you knew, how much you mean to us.
9. I should have been disappointed if you haven't told me, that he were making a gift for me.
10. If you had worked harder, you'd probably would've be the best student.