When would you use a interrogative pronoun?

You would use an interrogative pronoun when you are asking a question.

Here's a breakdown:

Interrogative Pronouns:

* Who: Refers to people.

* Example: Who is coming to the party?

* Whom: Used as the object of a verb or preposition (can be tricky, but generally think of it like "to whom" or "for whom").

* Example: Whom did you call?

* Whose: Shows possession.

* Example: Whose book is this?

* What: Refers to things or ideas.

* Example: What did you eat for lunch?

* Which: Refers to a specific person or thing from a limited group.

* Example: Which dress do you want to wear?

In short:

Interrogative pronouns are essential for forming questions! They replace the noun or noun phrase that we want information about.