"Don't you know?" or "Do not you know?" or "Do you not know?"

Hitesh_bestWhich of these sentences is grammatically correct?

"Don't you know?" or "Do not you know?" or "Do you not know?"

Similarly,

"Doesn't he know?" or "Does not he know?" or "Does he not know?"

thanks a lot

Remaining questions correct.

Hi guys,

I'd hesitate to call the unabbreviated forms grammatically incorrect. I'd prefer to say that they are extremely old-fashioned and sound extremely literary, and that you could live for years in an English-speaking country without hearing them.

Clive

In modern English not does not appear before the subject in a negative question. (Do not you ...?)

For emphasis, it may occur after the subject, but this is not the most usual pattern. (Do you not ... ?)

When it occurs as n't in a contracted form, however, as in don't, won't, can't, etc., it is quite usual for it to appear before the sub

Thanks you friends, my problem is resoleved now.

Hitesh_bestThanks you friends, my problem is resoleved now.

Hi Hitesh

resoleved should be spelled resolved. (I think it is a typing mistake.)

Best wishes

Hi Yoong Liat,
after "Hi Hitesh" should follow a ",".
And would you not rather shorten it is into it's and might the word error instead of mistake fit here a bit better?