What Are Interrogative Pronouns?
English Interrogative Pronouns
'What' is an interrogative pronoun that asks for the names of things. We can use 'what' to ask questions about the subject of the verb.
What as a Determiner
'What' as a determiner is always used before and it asks for information. For example:
Which as a Determiner
'Which' as a determiner is always used before a noun and it asks about a limited number of choices. Here are the examples: