What are interrogative determiners and how are they used?

Interrogative determiners are a type of determiner that are used to ask questions or seek information about a specific noun or noun phrase. They are used to introduce interrogative sentences and are placed at the beginning of a question.

There are three main interrogative determiners in English: "which," "what," and "whose." Each of these determiners has a specific usage and function.

1. "Which": This determiner is used when there is a choice or selection between a limited number of options. It is used to ask for a specific noun or noun phrase from a given set of options. For example:
- Which book do you want to read?
- Which color do you prefer, red or blue?

2. "What": This determiner is used when there is an open-ended question or when the options are not limited. It is used to ask for general information or to seek clarification. For example:
- What time is it?
- What is your favorite movie?

3. "Whose": This determiner is used to ask about possession or ownership of a noun or noun phrase. It is used to inquire about the person or entity that something belongs to. For example:
- Whose car is parked outside?
- Whose bag is this?

Interrogative determiners are always followed by a noun or noun phrase in order to form a complete question. They help to gather information and elicit specific details from the listener or reader. It is important to note that interrogative determiners are only used in interrogative sentences and not in declarative or imperative sentences.