Conditionals
Conditionals describe the result of something that might happen (in the present or future) or might have happened but didn't (in the past).
ZERO CONDITIONAL (REAL IN THE PRESENT)
present simple + present simple
If I have enough time, I watch TV every evening.
If you freeze water, it becomes solid.
If I drink too much coffee, I can't sleep at night.
Ice melts if you heat it.
When the sun goes down, it gets dark.
FIRST CONDITIONAL (REAL IN THE FUTURE)
present simple + (will + verb)
If I have enough time, I will watch TV later on tonight.
If you tidy my bedroom, I'll give you my sweets.
If it rains tomorrow, I won’t go out.
If he comes early, we'll go to the theatre.
If he doesn't come early, we won't go to the theatre.
If it rains tomorrow, I'll take the car.
If it doesn't rain tomorrow, we'll go to the beach.
Arsenal will be top of the league if they win.
When I finish work, I'll call you.
SECOND CONDITIONAL (UNREAL IN THE PRESENT / FUTURE)
past simple + (would + verb)
If I had enough time, I would watch TV now or later on.
If I had a free year, I would travel around the world.
If you took a taxi, you would get there in time.
If you didn't go to that place, you wouldn't get in trouble.
If I lived closer to the cinema, I would go more often.
If we had a garden, we could have a cat.
If I won a lot of money, I'd buy a big house in the country.
I wouldn't worry if I were you.
THIRD CONDITIONAL (UNREAL IN THE PAST)
past perfect + (would have + past participle)
If I had had enough time, I would have watched TV yesterday.
If I had been taller, I would have been a policeman.
If I had won the lottery, I would have bought a new house.
If I had understood the instructions properly, I would have passed the exam.
We wouldn't have got lost if my phone hadn't run out of battery.