Conditional sentences (conditionals)

Zero Conditionals
express a general truth or a scientific fact
If\When + Present Simple --- Present Simple
If we heat ice, it melts.
If you freeze water, it turns into ice.
If I am late, my father takes me to school.
When I am late, my father takes me to school.

Type 1 conditionals
express real or probable situations in the present or future
If +Present Simple --- Future Simple (will + V)
If the weather is fine, we will go for a walk.
She will get the job if she does well at the interview.

Type 2 conditionals
express unreal situations in the present or future
If + Past Simple/Continuous --- would + V
If I had much money, I would buy a car.
I would help you if I had more free time.
If I were you, I would stay in.

Type 3 conditionals
express unreal situations in the past (regret)
If + Past Perfect/Continuous --- would + V3
If I had studied harder, I would have passed the exams.
If I had known his mobile number, I would have called him.