Conditional Type 0.
1. If you eat too much junk food, you will get fat.
2. The cat purrs if you stroke it.
Conditional Type I.
1. If you go out with your friends tonight, I will watch the movie on TV.
2. He will pass next time if he takes more lessons.
Conditional Type II
1. If he tried harder, he would reach his goals.
2. They would tell us if they wanted to.
Conditional Type III
1. If she had asked me for the pen, I would have given it to her.
2. I would have liked the book if it had been shorter
