Question

How we make passive of
They should/ought to have tod him.

Answer 1

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They should

$\huge\colorbox{pink}{MrsGoodGirl❥࿐}$

Answer 2

Answer:

Active Voice-

They should have told him.

Passive Voice-

He should have been told by them.

By adding ought to here,

He ought to have been told by them.

Hope it helps

Explanation: