IF  you eat a lot of icecream, you WILL get fat.

IF you don't study, you WON'T get a good grade.

IF you study, you will pass.

If you have a good job, you will earn a lot of money.

If you drink one more glass of wine, you will get drunk.

1:          If you eat a lot of ice-cream, you will get fat. If you drop the phone, it will break.

2:          If you ate a lot of ice-cream, you would get fat. If you dropped the phone, it would break.

3:          If you had eaten a lot of ice-cream, you would have got fat. 

             If you had dropped the phone, it would have broken.