her; of her
Я не видел ней.
I did not see her.
on her; about her
Все говорили о ней.
Everyone was talking about her.
Он ничего не знает о ней.
He knows nothing about her.
Я думаю о ней каждый день.
I think about her every day.
Мы говорили о ней вчера.
We talked about her yesterday.
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