The passive voice is used when we want to focus attention on the person or thing affected by the action performed by the subject. Normally, the performer of the action (or subject), or the agent, comes first and is made the subject of the verb and then we use the active form of the verb. The other person or thing is made the object of the verb.
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Passive rules as per tense
The places of subject and object in sentence are inter-changed in passive voice. Past participle or III-rd form of verb is used only (as main verb) in passive voice.
Present simple
Past Simple
Present Continuous
Past Continuous
Past Perfect
Present Perfect Continuous
Future Simple
Future Continuous
Future perfect
The project team will have completed the report before the deadline.
The report team will have been completed by the project team before the deadline.
Would
The singer would not record songs on Wednesday from next week, because he will spend that day at the temple.
The songs would be not recorded by the singer on Wednesday, because that day would be spent by him at the
temple. .
The bars and restaurants in this area would not serve liquor on Tuesdays and Thursdays.
Liquor would not be served on Tuesdays and Thursdays by the bars and restaurants in this area.
I knew Kevin would finish the work by tomorrow.
I knew the work would be finished by John by tomorrow.
Can
He can make the report single handedly.
The report can be made single handedly by him.
After getting the approval from the authorities, we can collect our payments on time.
After getting the approval from the authorities, payments can be collected by us on time.
Could
When he was young, he could lift 40 kgs easily.
When he was young, 40 kgs could be lifted by him easily.
Must
We must always help people in need.
People in need must always be helped by us.
Modal verbs in continuous forms
Modal verbs