Who vs. Whom

Who and Whom These pronouns are both: interrogative pronouns (used in asking questions) and relative pronouns (used to refer to a noun in the main clause).

Who is the Subjective Form Who is always a subject doing the action. Use who whenever he, she, they, I, or we could be substituted in its place. Test it: If you could use he, she, or they – then use Who

Whom is the Objective Form Whom is an object—receiving the action Use whom whenever him, her, them, me, or us could be substituted as the object of the verb. Test it: If you could use him, her, or them – then use Whom Clue: If it follows to, for, from, or by use whom