if clause 2

1.
a. If I make a promise, I will never break it.
b. If I made a promise, I would never break it.
c. If I had made a promise, I would have never have broken it.
2.
a. If I go to Australia I will do anything I want.
b. If I were to go to Australia I would do anything I want.
c. If I had been to Australia I would have done anything I'd wanted.
3.
a. If I become a teacher I won't give a lot of tasks.
b. If I was a teacher I wouldn't give a lot of tasks.
c. If I had been a teacher I wouldn't have given a lot of tasks.
4.
a. I will be very happy if I invent a machine to do my homework.
b. I would be very happy if I invented a machine to do my homework.
c. I would have been very happy if I had invented a machine to do my homework.
5.
a. You will be rich if you work harder.
b. You would be rich if you worked harder.
c. You would have been rich if you had worked harder.
6.
a. I'll change for you if you have a reason.
b. I'd change for you if you had a reason.
c. I'd have changed for you if you had had a reason.
7.
a. I won't do that if you don't disappoint me.
b. I wouldn't do that if you didn't disappoint me.
c. I wouldn't have done that if you hadn't disappointed me.
8.
a. I'll see you if I go to Australia.
b. I'd see you if I went to Australia.
c. I'd have seen you if I had gone to Australia.
9.
a. I'll study if you don't push me down.
b. I'd study if you didn't push me down.
c. I'd have studied if you hadn't pushed me down.
10.
a. I'll go to the toilet if you allow me.
b. I'd go to the toilet if you allowed me.
c. I'd have gone to the toilet if you had allowed me.