We would have gone with him if we had known about his small car
If you don't treat the dog kindly, he will bite you.
I will go with you tonight if my parents let me
You will grow up quicky if you drank a lot of milk
If you won that contest, I will be very happy
If you had studied, you would have passed your exams.
Third conditional
First conditional
First conditional
Third conditonal
Second conditional
Second conditional