Question

we know him change into passive voice .​

Answer 1

Explanation:

He is known by us

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Answer 2

$\huge{\mathtt{\purple{A}\green{N}\pink{S}\blue{W}\purple{E}\green{R}\pink{!}\blue{!}}}$

He is known to us.

Extra Information :

• The object in the active voice becomes the subject in the passive voice.

• The subject in the active voice becomes the object in the passive voice. It is generally preceded by the preposition 'by'.

• The main verb (the finite verb) of the sentence is changed into its past participle form, and it is preceded by the correct form of 'be' verb in passive voice.

• A few verbs in Passive Voice are followed by a number of prepositions. In such cases, 'by' is not used that's why 'to' is used here.