Conditionals.

Conditionals

Zero.

Universal truths.

If (sometimes when) + present, + present.

If I run, I get tired.

When I wake up on time, I be happy.

First.

Future.

If (sometimes unless) + present, will + infinitive.

If i sell my house, I will buy a expensive car.

He wont pass the exam unless he studies.

Second.

Unreal hypothesis.

If + past simple, Would + infinitive.

If he has a lot of money, he would travel around the world.

If I were you, I would be careful.

Third.

Past hypothetical results.

If + past perfect + would have + participle.

If he had gone to the cinema, he would have met your friends.

If I had called her before, she would have arrived on time.

Fourth.

Past hypothetical thing whose results would have happening now.

If + past perfect + would + present.

If you had studied, you would be in the concert just now.

In we hadn't reeded the book, we wouldn't be dancing at home.