The Passive form of :-
I know her.
AShe is known to me.
BShe was known to me.
CShe is known me.
DShe is known by me.
The Passive form of :-
I know her.
AShe is known to me.
BShe was known to me.
CShe is known me.
DShe is known by me.
Related Questions:
The Passive Form of:-
His conduct surprised me .
Turn into the Passive :
She knows the musician personally