Question

l know you ( voice change)​

Answer 1

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You are known by me.

Explanation :-

We will shift the object and subject. Then V1 changes into is/am/are ,but here you is 2nd person, so we will use are. In Passive voice we use by so, the answer : You are known by me.

Answer 2

Answer:

You are known to me.

Explanation:

Here is your answer