|
| Present
| Past
| Future
|
| +
| The letter is written.
| The letter was written
| The letter will be written
|
| -
| The letter is not written
| The letter was not written
| The letter will not be written
|
| ?
| Isthe letter written
| Wasthe letter written
| Willthe letter be written
|
| We use the passive voice if we do not know who does the action, or the doer is not important; the thing or person that receives the action is important. The receiver becomes the subject of the sentence.
Eg: The houses are built every year. The book was written by Tom Fox. The message will be sent tomorrow.
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