
By any chance
Subtle Uncertainty
'By any chance' adds a gentle tone of uncertainty and is less direct than just asking a question.

Do you know, by any chance, when the store closes?
Low Expectations
It implies that you don't expect the person to know the answer but you're asking just in case.

You wouldn't have seen my keys, by any chance?
Polite Interruption
Using it at the start of a question is polite, especially when interrupting or speaking to a stranger.

By any chance, could you tell me the time?
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