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, , , , . .

If Im ill I take a sick leave. , .

If I was ill I took a sick leave. , .

If Im ill shall take a sick leave. , .

, , . should/would + Indefinite Infinitive to, , Past Indefinite, to be were . - .

If he knew English well, he would speak to the delegation. , .

If I were you, Id prescribe aspirin to the patient. ( ) .

, , , . , , - should/would + Perfect Infinitive, , Past Perfect. - ( ).

If I had known of your arrival yesterday I should have met you. , .

17.1. .

1. , . 2. , . 3. , . 4. , . 5. , . 6. , . 7. , . 8. , . 9. , . 10. .

17.2. , .

1. If they offer us their help, well accept it. 2. If Jack were more polite, she said wouldnt behave like that. 3. She said that if they were here, shed speak to them. 4. If he were here, he could help us. 5. If I were you, I wouldnt treat the boy like that. 6. If I had been in your place, I wouldnt have got offended (to offend , ). 7. If anything had been wrong with the car, they would have gone by train.

17.3. , would could might. .

1. If they hadnt taken a taxi, they would have missed the train. 2. If Robert were here, he would suggest a way out. 3. If we had let them know, they would have met us at the station. 4. If Robert were a doctor, they would listen to him.

17.4. . .

Model: If he comes, well discuss it. If he came, wed discuss it. If hed come, wed have discussed it.

1. If you interfere in their affairs, theyll get angry. 2. If I keep them waiting, Ill apologize. 3. If you explain everything, hell forgive you. 4. If you arrange to meet on Sunday, Ill come too. 5. If he stays away long, well miss him.

17.5. .

1. , . 2. , . 3. , . 4. , . 5. ? . 6. , . 7. , . 8. , .

17.6.





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