I have these sentences (both of them are in a book series, and are written by Indian):

1)Which football team wins the game?

2)What materials are used to make it?

I wonder if they are grammatically correct? I think "what" and "which" in this case are interrogative adjectives. I have got some similar sentences on various websites, but I'm still not sure:

a)Which coat is Paul’s?

b)which book belongs to you , this or that ? (This one is from a Vietnamese's website, it says that "which book" plays subject role) Hope to receive your help. Thanks a lot!!

  • 1
    In your examples, "which" and "what" are called interrogative determiners. We stopped calling them adjectives some years ago.
    – BillJ
    Commented May 5, 2016 at 12:30

1 Answer 1


First hit on Google for "interrogative adjectives":


So yes, you are correct and it's easily checked.

In terms of correct grammar, though - check your use of "wins", as this seems odd unless this is a sentence fragment ("which football team wins the game if it's a nil-nil tie at the end" - and even that would be better as "would win" as it's a conditional clause).


  • In the book which I'm editing, they use "Which football team wins the game?" as a question. That's the problem. But, I just found another similar sentence in k12reader.com/term/interrogative-adjectives : >Which team scored the highest points in the academic bowl? I'm still thinking about this.
    – Sour Tofu
    Commented May 5, 2016 at 13:15
  • 1
    Context is everything here. "Two teams meet on the field. Which team wins? It depends on ..." is fine, as an example. That was my point (perhaps not well-made): it's hard to tell if this is correct with just that sentence in isolation. Commented May 5, 2016 at 13:45

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