Make passive sentence from: “I know him.”

Question

Make passive sentence from: “I know him.”

1. A. He is known by me
2. B. He is known to me (Correct answer)
3. C. He was known to me
4. D. He has been known to me

Correct Answer

Option B — He is known to me

Detailed Solution & Explanation

The correct answer is He is known to me.

Key Points

• The active sentence *I know him* becomes passive as He is known to me.
• With the verb know, standard English takes the preposition to, not *by* — which is what makes option A wrong despite following the usual passive pattern.
• The tense stays simple present, so *was known* and *has been known* are also incorrect.

Additional Information

• The general passive rule is object → subject, verb → be + past participle, subject → by + agent.
• A small group of verbs takes to instead of *by* in the passive: known to, agreed to, surprised at, interested in, satisfied with.
• Only transitive verbs can be made passive, since an object is required to promote.