| Structure of passive forms | ||
| The office is cleaned two times a week. | The office isn't (is not) cleaned two times a week. | Is the office cleaned two times a week? |
| The office was cleaned on Friday. | The office wasn't (was not) cleaned on Friday. | Was the office cleaned on Friday? |
| The office is being cleaned at the moment. | The office isn't (is not) being cleaned at the moment. | Is the office being cleaned at the moment? |
| The office has already been cleaned. | The office hasn't (has not) been cleaned yet. | Has the office been cleaned? |
| The office will be cleaned next week. | The office won't (will not) be cleaned next week. | Will the office be cleaned next week? |
| The office can be cleaned. | The office cannot be cleaned. | Can the office be cleaned? |
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When we want to include the agent (who), we use the prepositional phrase
with by: The play An Ideal Husband was written by Oscar Wilde. |
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| Passive forms - common mistakes | ||
| Common mistakes | Correct version | Why? |
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This problem will be solved next week. | To make a passive form we use be + past participle. |
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This problem will be solved next week. | |
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My car is being repaired at the moment. | To make a passive form of a continuous tense we use be + being + past participle. |
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She has already been invited. | To make a passive form of the perfect tense we use have/has/had + been + past participle. |
