Why do we ask “Who is she?” in the subjective form?

If “her” is objective and “she” is subjective, why do we say:

‘Who is she?’

instead of:

‘Who is her?’

apart from the latter sounding a bit strange?

For instance:

‘That car belongs to her.


She has a nice car.’

Is the second sentence, ‘Who is her?’, actually grammatical and is there a situation where it is appropriate? (Or am I just plain wrong in thinking that “who” is the subject in both questions?)


It is incorrect that “who” is the subject, “she” is still the subject. If it wasn’t a question it would be “She is who”. Because it’s a question it is inverted.

Wikipedia: https://en.wikipedia.org/wiki/English_grammar#Questions

Source : Link , Question Author : Dog Lover , Answer Author : Austin

Leave a Comment