I would buy the book if I had money.
If I were you, I would go shopping.
If it didn't rain, we would go to the mountains.
He wouldn't go to work if he had enough money to stay at home.
They would play basketball if they were taller.
If Paul got that job, he would do his best to accomplish his tasks.
If the teacher didn't give us homework, we would expect a test paper next time.