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EXERCISES for CHAPTER 10. MODAL VERBS
1. Change the following affirmative statements into questions. For example:
      I may go.
      May I go?

      We could have found it.
      Could we have found it?

1. I must leave at four o’clock.
2. He might be leaving for work now.
3. We can solve the puzzle.
4. You should have called him.
5. They could have been waiting for the bus.
6. I shall go out now.
7. You will have finished the book.
8. We should be making the arrangements.
9. She would like to know the answer.
10. They can explain what happened.
Answers

2. Change the following affirmative statements into negative statements. For example:
      I can answer the question.
      I cannot answer the question.

      He shall be sorry.
      He shall not be sorry. (Devamini Okuyun…)

CHAPTER 10.  MODAL VERBS
There are nine modal verbs in English: can, could, may, might, must, shall, should, will, and would. Two of these, will and would, have already been discussed in detail.
 
1. Formation of the modal conjugations

All of the modal verbs are used as auxiliaries, and all of them form conjugations in the same way. Thus, the other modal auxiliaries form conjugations in the same way as will and would. For instance, the conjugation of the modal auxiliary could with the verb to work is formed as follows:
Conjugations of the modal auxiliary Could with the verb To Work
Simple Continuous
  I could work   I could be working
  you could work   you could be working (Devamini Okuyun…)