'Who' is a subject pronoun like 'he', 'she' and 'they'. We use 'who' to ask which person did an action or which person is in a certain state. Who wrote that letter? Who is the manager? Who is going to prepare dinner? 'Whom' is an object pronoun like 'him', 'her' and 'us'. We use 'whom' to ask which person received an action. "Who" is a subject pronoun like "he," "she" and "we" in the examples above. We use "who" to ask which person does an action or which person is a certain way. Examples: from English Grammar Today Who and whom are wh -words. We use them to ask questions and to introduce relative clauses. Who as a question word We use who as an interrogative pronoun to begin questions about people: Who's next? Who makes the decisions here? Who did you talk to? We use who in indirect questions and statements: The phone rang. When do you use who vs. whom? Our language is changing, and it's becoming more appropriate to use "who" all over the place. But the basic rule is that "who" is the subject form ("Who is calling, please?") and "whom" is the object form ("Whom did you see in the garden?") from English Grammar Today Relative pronouns introduce relative clauses. The most common relative pronouns are who, whom, whose, which, that. The relative pronoun we use depends on what we are referring to and the type of relative clause. 26KT.

who whom whose examples