* Who
* Whom
* Whose
* What
* Which
These pronouns are used to stand in for a noun that we want to know more about.
Here are some examples:
* Who is going to the party? (Asking about a person)
* Whom did you see at the park? (Asking about the object of a verb)
* Whose book is this? (Asking about possession)
* What is your favorite color? (Asking about a thing)
* Which one do you want? (Asking about a choice from a group)
Key points to remember about interrogative pronouns:
* They always start a question.
* They take the place of a noun in the question.
* They can be the subject or object of the verb in the question.