Conditional 0 (ogólne prawdy)

If + Present Simple, present simple

If  you heat water, it boils

If you freeze water, it becomes solid.

Conditional 1 (bardzo prawdopodobne)

If + Present Simple, will + infinitive

If the rain stops, the match will begin.

If people don’t stop polluting the air, life on Earth will die soon.

If you don’t fasten seat-belt you wont feel sale.

Conditional 2 (warunki nie możliwe do spełnienia teraz lub w przyszłości)

If + Past simple (-ed, 2 kol.) , would/could/might + infinitive

If I wear you, I would buy the car.

If the sun stopped shining, life on Earth would disappear.

If I knew two languages I would get this job.

Conditional 3 (odnosi się do przeszłości, nic na to nie można poradzić)

If + Past perfect (HAD I 3 kol), would/could/might + have + 3 kol

If I had gone to the party, I would have met Paweł.

If I had known he was in a hospital I would have visited him

MIXT (1 zdanie III con, 2 zdanie II con)

If I had learned then I would pass the egzam now.

If I had learned then, I woudn’t have to work so hard.