1.If I had studied harder, I would have passed the exam.
2.If it hadn't rained,we could have gone to the beach.
3.I would have sent you a postcard if you i had recieved your address.
4.If I'd known it was going to be sunny,I would have worn my sunglasses.
5.He would have been on time for the interview if he hadn't left the house late.
6.If I had paid more attention in class,I would have broken the lesson.
7.If we had gone to the cinema,we would have seen Star Wars.
8.We would have swum in the sea if there haven't been so many jellyfish.
9.If you had saved your money,you would have bought a house.
10.If I had known them ,I would have invited them to the party.