The document discusses the different types of conditionals in English: The zero conditional describes things that are always true and uses the present simple tense in both clauses. The first conditional expresses possible or probable future events and uses will/can + infinitive in the main clause. The second conditional talks about unlikely or imaginary situations in the present or future and uses would/could + infinitive. The third conditional refers to impossible past events and uses would/could have + past participle.

1. CONDITIONALS 1st 2nd 3rd IF ….

2. The zero conditional is used to talk about things which are always true – scientific facts, general truths, and so on. Zero Conditional

3. present simple. Present simple, main clause if clause

4. it boils. If you heat water to 100 degrees , main clause if clause if you heat it to 100 degrees. Water boils if clause main clause

5. it burns. If you expose phosphorus to air , main clause if clause if you expose it to air. Phosphorus burns if clause main clause

6. she always blushes. If a man looks at her , main clause if clause if a man looks at her. She always blushes main clause if clause

7. IMPERATIVE + IF CLAUSE don’t disturb her. If Irene is tired , main clause if clause if she is tired. Don’t disturb Irene if clause main clause

8. WILL / CAN + IF CLAUSE 1st conditional real / possible will/can + infinitive. Present simple, main clause if clause

9. I will answer it. If the phone rings , main clause if clause we can go to the beach. If the weather is sunny later, main clause if clause

10. 2nd conditional WOULD / COULD + IF CLAUSE unreal would/can + infinitive. Past simple, main clause if clause

11. I would travel around the world. If I were rich, main clause if clause I would pass my English exam. If I studied more, main clause if clause

12. 3rd conditional WOULD / COULD HAVE + IF CLAUSE Impossible actions in the past would/can +have + past participle. Past Perfect, main clause if clause

13. You would have been on time for breakfast. If you hadn’t been so lazy, main clause if clause He might have been able to help us. If he had come earlier, main clause if clause