Conditional Type 1
| Rule |
|---|
| (condition) + (action that is possible in the future). |
| If + present simple, will future. or Will future + if + present simple. |
| If you ask me, I will help you. If he doesn't call me, we won't go out. My father will be angry if we come back home late. If I catch the bus, I will be home early. |
Conditional Type 2
| Rule |
|---|
| (condition) + (an action that is not likely to happen in the future ). |
| If + simple past , would + first form. or Would + first form + if + simple past. |
| If you asked me, I would help you. If John didn't be shy, he would kiss Susan. If I won a lot of money, I would buy my own house. If she learned, she would pass the test. |
Conditional Type 3
| Rule |
|---|
| (condition) + (action that is not possible in the future anymore). |
| If + past perfect, would have + third form. or Would have + third form + if + past perfect. |
| If you had asked me, I would have helped you. If I had asked him yesterday, he wouldn't have forgotten it. I would have informed the police if you hadn't brought my bike back. |