If you (heat) water, it (boil).
If you heat water, it boils.
If it (rain) tomorrow, we (stay) at home.
If it rains tomorrow, we will stay at home.
If you (touch) fire, you (get) burned.
If you touch fire, you get burned.
If I (finish) my homework, I (watch) TV.
If I finish my homework, I will watch TV.
If people (not eat), they (get) hungry.
If people don’t eat, they get hungry.
If she (study) hard, she (pass) the test.
If she studies hard, she will pass the test.
