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having a clue

vb. (present participle of have a clue English)

Usage examples of "having a clue".

If the breakin is so easy you can do it without having a clue what the command “.

Waillan and Dunkin exchanged doubting looks, neither having a clue as to what Deudermont might be talking about.

Not having a clue what was wrong, he changed the subject at once, squeezing a corner of his bulk onto the tiny space that had been reluctantly cleared for him.