I understand that a sentence can have more than one subject, but I don't understand the grammatical role of he in the question below and which verb he is performing if he is also a subject.
Who is he?
My understanding is that the above question is a request of information, and hence, the implied recipient of the question, you, is the subject pronoun. The question, when presented explicitly, would be as follows:
Who (do you think) is he?
If my assumptions are correct, wouldn't that make he the object pronoun, since the subject you is performing the verb think on the object he? However, I read online that him is the object pronoun, not he, so I can only gather that my assumptions are wrong, somehow.
And if they indeed are, that would mean the implied you and the pronoun he are both subjects and he is performing the verb is, but I am not sure.
Please enlighten me if you understand what I am asking. It is much appreciated.