1 conditional.
If I have time, I will call you. If you have money, buy me a pen. If he comes, I will help him.
2 conditional.
If I were a farmer I would work in a field. If he was here he would tell you the truth. If she was rich she would travel a lot.
3. If John hadn't climb the tree he wouldn't have fallen. If you had come I would have given you a present. If They had studied harder, they would have passed the exam.