Interrogative pronouns (like who, what, which, whom, whose) are typically used to ask questions about a specific person, thing, or group. They usually have an antecedent, which is the word or phrase the pronoun refers back to.
Here are some examples:
* "Who ate my cookies?" (The antecedent is implied: the person who ate the cookies)
* "What is your favorite color?" (The antecedent is implied: the color you like best)
It's hard to construct a sentence with an interrogative pronoun that doesn't refer to anything specific. You could create a situation where the pronoun is ambiguous, but it still technically has an antecedent, even if it's not explicitly stated:
"Who is the one to blame?" (The antecedent could be any person involved in the situation where blame is being considered.)
To make a sentence where the interrogative pronoun truly has no antecedent, you might need to get creative and create a nonsensical or fictional scenario:
"Who are you, and why are you made of stars?" (This sentence has an interrogative pronoun, but it's unclear what it's referring to, making it effectively antecedent-less.)
Let me know if you'd like to explore other scenarios or have other questions!