I refer to the usage of "don't" as an imperative to tell someone what not to do. As in,
Hey! Don't you dare touch that button!
When it is used in the interrogative or as part of a statement, "don't" can be expanded like most other contractions. It either just breaks up right in the sentence, or surrounds the subject.
Don't you love me, Juanromeo? -> Do you not love me, Juanromeo?
I don't love you, Marijuliet. -> I do not love you, Marijuliet.
However, I have no idea how one breaks up the imperative. "Do you not dare[...]" sounds like it's a lead up to a question, "You do not dare[...]" comes across as a statement moreso than a command, and "Do not you dare[...]" just sounds silly.
"Don't" is a bit unique among "not" contractions (at least that I know of) because it is the only one that can be used in an imperative sense. Couldn't, shouldn't, wouldn't, haven't, isn't, doesn't, aren't, can't... none of these can be used in an imperative sense because you cannot command someone to could, should, etc.
Is it possible to expand the don't contraction when it is used as part of a command? Or is its unique case such that it exists as its own linguistic construct?