If conditionals present conditions.
- If you study hard, you will pass the exam.
- If they let you in, thank them for the permission.
- If the crops yield better this time, I will buy you a cycle.
In Grammar, there are three (and more) kinds of conditionals depending on their possibility level.
If+V1¹ – High Possibility
- If you meet Sam, inform him that I am not well for the match. (For sure)
- If the giant sees you enter his garden, he will kill you. (For sure)
If+V² – Low Possibility
- If I met Sam, I could tell him about you. (But I could not meet Sam yet)
- If she came here in time, we could together talk to her. (But she has not yet come)
- If they talked openly, they could solve this dispute. (But they have not talked so openly)
If+Had+V³ – Impossibility
- If I had met Sam, I could have told him about you. (But it is too late!)
- If she had come here in time, we could have together talked to her. (But too late!)
- If they had talked openly, they could have solved this dispute. (Too late. They never talked openly)
If+Forced Past – Unreality
- If I were you, I could convince the teacher. (But I can never be you)
- If I were a bird! OR Only if I were a bird! (But I cannot be a bird)
- If she were a man! (She is a woman)
- I ……. if you had asked me to stop it.
- The minister would resign if the Prime Minister …… to.
- We would have cancelled the match if …… .
- Rakesh will become a good son if his father …….. that he is not always right.
- I will vacate the room if you ……. another cigarette.