Do you ever put stress on the auxiliary verbs in do not, may not, will not, should not, etc. without contracting them?
If we take a look at don't, can't, won't, shouldn't, for example, the n't part clearly can't be stressed, as it doesn't make a syllable. So I guess those contractions come from DO not, CAN not, WILL not, SHOULD not with the stress on the auxiliary verbs, but I have rarely, if ever, heard such pronunciation. Maybe cannot is the only exception.
When you read aloud formal writing, where contractions like don't are avoided, do you always pronounce do not and such with the stress on not, or do you sometimes contract them, like don't, or do you even pronounce them like DO not?