Հարց 59

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

We should have checked the weather.Ճիշտ պատասխան
They could have taken the earlier train.Ճիշտ պատասխան
She should of backed up the folder.
He could of asked for directions.

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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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