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Question 59

Which sentences use a standard modal-perfect construction? Select all that apply.

  1. We should have checked the weather.Correct answer
  2. They could have taken the earlier train.Correct answer
  3. She should of backed up the folder.
  4. He could of asked for directions.

Explanation

The correct sentences place have after the modals should and could and before a past participle. The versions with of substitute a preposition for the auxiliary, so they cannot form the required verb phrase.

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Question 59: Which sentences use a standard modal-perfect construction?… · Commonly Confused English Words · Questena