Active and passive forms
We use have + object + past participle when we talk about someone doing something for us which we ask or instruct them to do. It emphasises the process/action rather than who performs it.
Active and passive forms
We make the passive using the verb be + past participle: only the form of be changes to make the tense, and the past participle stays the same.
Active and passive forms
We use the passive voice when the person or the thing affected by the main verb becomes the focus, and is often used when the person or thing doing the action is not important, unknown,
