https://youtu.be/r8ux-wvFQNM?t=46
At 46 seconds into the video clip of the movie 'Ant-Man and the Wasp', Ava Starr (aka, "ghost") says:
They were colleagues at S.H.I.E.L.D. Quantum research. Until my father dared disagree with the great Hank Pym.
I thought 'dare' normally is used in negatives and questions.
Is there any reason why this 'dare' is used in the positive?
The phrase "dared disagree with the great Hank Pym" carries a lot of implied information. It tells us that Hank Pym thought of himself as "great". The word is being used sarcastically here.
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The phrase "dared disagree with the great Hank Pym" carries a lot of implied information. It tells us that Hank Pym thought of himself as "great". The word is being used sarcastically here. And it tells us that disagreeing with Pym was considered an unthinkable thing, so for his father to disagree was treated as a terrible sin.
There is no rule against using "dare" in positive or affirmative sentences if the context calls for it, as is the case here.