Make Passive forms from the given phrases. Mind the tenses in brackets.
1) the classrooms - to use (Past Perfect)
Answers
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Answer:
The classroom having to use
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Answer:
The classroom had been cleaned by the maid.
Explanation:
Past Perfect Tense is used to refer to an action that happened before another action in the past.
When we convert the active voice of Past Perfect into passive, we use passive form equivalent to the active form. The passive form in Past Perfect is had been+V3. The object is made the subject and vice versa; and 'by' is added.
Past perfect active = had + V3
Past perfect passive = had + been + V3
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