По 3 примера в условии предложения 1 и 2 типа.

1) I will go for a walk if I have free time
2) They will be late if they don't hurry
3) If I don't learn this poem by heart I'll get a bad mark

1) I would go for a walk if I had free time
2) They would be late if they didn't hurry
3) If I didn't learn this poem by heart I would get a bad mark