Is it correct to say "Whose turn to" instead of "Whose turn is it to"?

"Whose turn to put the rubbish out?"

"Whose turn is it to put the rubbish out?"

  • The second is correct, the first is common in informal speech.
    – Barmar
    Aug 31 '20 at 20:18

The second is clear and grammatically correct. The first is well understood and you will find a discussion of this sort of construct in What does "What price [noun]?" mean? , where parallel questions such as "What price ...?" are discussed.

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