Conditional 0
If you __________ (heat) water to 100°C, it __________ (boil).
If you heat water to 100°C, it boils.
If it __________ (rain) tomorrow, we __________ (stay) home.
If it rains tomorrow, we will stay at home.
If I __________ (win) the lottery, I __________ (travel) around the world.
If I won the lottery, I would travel around the world.
If I __________ (study) harder, I __________ (pass) the exam.
If I had studied harder, I would have passed the exam.
If I __________ (study) medicine, I __________ (be) a doctor now.
If I had studied medicine, I would be a doctor now.
If people __________ (not drink) water, they __________ (get) thirsty.
If people don't drink water, they get thirsty.
She __________ (pass) the exam if she __________ (study).
She will pass the exam if she studies.
If she __________ (be) taller, she __________ (play) basketball.
If she were taller, she would play basketball.
If she __________ (leave) earlier, she __________ (catch) the train.
If she had left earlier, she would have caught the train.
If she __________ (not miss) the bus yesterday, she __________ (be) here now.
If she hadn't missed the bus yesterday, she would be here now.
Plants __________ (die) if they __________ (not get) sunlight.
Plants die if they don't get enough water.
If they __________ (not hurry), they __________ (miss) the bus.
If they don't hurry, they will miss the bus.
We __________ (buy) a bigger house if we __________ (have) more money.
We would buy a bigger house if we had more money.
They __________ (not miss) the flight if they __________ (arrive) on time.
They wouldn't have missed the flight if they had arrived on time.
If he __________ (be) more responsible, he __________ (not forget) the meeting yesterday.
If he were more responsible, he wouldn't have forgotten the meeting yesterday.
If you __________ (mix) red and blue, you __________ (get) purple.
If you mix red and blue, you get purple.
I __________ (call) you if I __________ (need) help.
I will call you if I need help.
If I __________ (know) his number, I __________ (call) him.
If I knew his number, I would call him.
If we __________ (know) about the party, we __________ (go).
If we had known about the party, we would have gone.
If I __________ (not spend) all my money last week, I __________ (have) money now.
If I hadn't spent all my money last week, I would have money now.
If ice __________ (melt), it __________ (become) water.
If ice melts, it becomes water.
If he __________ (finish) his homework, he __________ (play) video games.
If he finishes his homework, he will play video games.
They __________ (live) in another country if they __________ (can).
They would live in another country if they could.
He __________ (not fall) if he __________ (be) more careful.
He wouldn't have fallen if he had been more careful.
If they __________ (live) closer, they __________ (visit) us more often last weekend.
If they lived closer, they would have visited us more often last weekend.