Well, we know don't is the same as do not, right?
Therefore, can I say "Do not you know?", instead of "Don't you know?"?
Well, I know that chances are I can't do that, but technically that should be correct, no?
Grammar – Is ‘Don’t You Know?’ the Same as ‘Do Not You Know?’
abbreviationscontraction-vs-full-formcontractionsgrammarnegative-raising
Best Answer
You should also be able to say 'Are I not?' instead of the typical 'Aren't I?' Presumably these colloquialisms result from the fact that neither 'Do you not know?' nor 'Am I not?' have a contraction that is at once easily pronounceable and logical.