"أنا رأيتها من قبل."
الترجمة:I saw her before.
"I have seen it before" should be correct as well, how can I know whether it is IT or SHE????!!!
Since there is no way to define the right meaning of the sentence, the two words should be accepted.
ahmed eid i answered it like what you're saying (I have seen it before) and it's right