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Passive voices for Present and Future Modals
(e.g. MAY, MIGHT, CAN, MUST, SHOULD, OUGHT TO)

Passive Voices for Present & Future Modals
(e.g. MAY, MIGHT, CAN, MUST, SHOULD, OUGHT)
Auxiliary Verb used in Passive Voice: Be
Active Voices Passive Voices
CAN
CAN BE
He can drive a car. A car can be driven by him
He cannot drive a car. A car cannot be driven by him.
Can he drive a car? Can a car be driven by him?
MUST
MUST BE
He must learn this book. This book must be learnt him.
He must not learn this book. This book must not be learnt by him.
Must he learn this book? Must this book be learnt by him.
MAY
MAY BE
She may eat an apple. An apple may be eaten by her.
She may not eat an apple. An apple may not be eaten by her.
May she eat an apple? May an apple be eaten by her?
MIGHT
MIGHT HAVE
She might kill the snake. The snake might be killed by her.
She might not kill the snake. The snake might not be killed by her.
Might she kill the snake? Might the snake be killed by her?
SHOULD
SHOULD BE
I should buy this clock. This clock should be bought by me.
I should not buy this clock. This clock should not be bought by me.
Should I buy this clock? Should this clock be bought by me?
OUGHT TO
OUGHT TO BE
You ought to help her. She ought to be helped by you.
You ought not to help her. She ought not to be helped by you.

Passive voices for Past Modals
(e.g. MIGHT HAVE,MAY HAVE, SHOULD HAVE, OUGHT TO HAVE, MUST HAVE)

Passive Voices for Past Modals
(e.g. MIGHT HAVE, MAY HAVE, SHOULD HAVE, OUGHT HAVE, MUST HAVE)
Auxiliary Verb used in Passive Voice: BEEN
Active Voices Passive Voices
SHOULD HAVE
SHOULD HAVE BEEN
I should have started a job. A job should have been started by me.
I should not have started a job. A job should not have been started by me.
Should I have started a job? Should a job have been started by me?
MUST HAVE
MUST HAVE BEEN
He must have passed the exam. The exam must have been passed by him.
He must not have passed the exam. The exam must not have been passed by him.
MAY HAVE
MAY HAVE BEEN
You may have helped the kids. The kids may have been helped by you.
You may not have helped the kids. The kids may not have been helped by you.
MIGHT HAVE
MIGHT HAVE BEEN
He might have killed the snake. The snake might have been killed by her.
He might have not killed the snake. The snake might not have been killed by her.
OUGHT TO HAVE
OUGHT TO HAVE BEEN
You ought to have finished the task. The task ought to have been finished by you.
You ought not to have finished the task. The task ought not to have been finished by you.