1. THE ZERO CONDITIONAL 'IF' CLAUSE (CONDITION) MAIN CLAUSE (RESULT) If + simple present If you heat ice If it rains simple present it melts. you get wet

2. THE ZERO CONDITIONAL If you heat water to 100 degrees… … it boils.

3. THE ZERO CONDITIONAL If water gets below freezing… … it turns into ice.

4. THE ZERO CONDITIONAL If you don’t water plants,… … you get purple. If you add two and two,… When the traffic light changes to amber,… If you cross an international date line, … When I am stressed, …

5. THE 1 ST CONDITIONAL If I don’t have a lot of work today, I’ll go home early and watch the football game. TOM We use the 1st conditional to talk about a general/specific situation in the future: if (present) + future (will, might, going to) (when, as soon as, unless)

6. THE 1 ST CONDITIONAL Tom: I have a horrible headache… You: If you take an aspirin,… If we don’t protect elephants,... You won’t pass the course if… I’m going to... as soon as I get home. You might … higher insurance if you buy a sports car.

7. THE 2 ND CONDITIONAL If I didn’t have so much work, I’d go home and watch the football game. (optimistic) TOM (real) TOM If I don’t have a lot of work today, I’ll go home early and watch the football game.

8. THE 2 ND CONDITIONAL We use the 2nd conditional to talk about an unreal or imaginary situation and its result or consequence: if (past) + would, could) If I didn’t have so much work, I’d go home early tonight. (but I HAVE a lot of work tonight, so I won’t probably go home early) If I won the lottery, I’d buy a new car. (but what are the chances that I win the lottery?) If I could choose my ideal job, I’d be an architect. (but I’m a teacher)