"Not" is used with a verb form in negation. "We do not see them." "No" is used to express negation in all other forms. Do you like the color red? -No, I prefer blue. -

"Not" and "no" are both used to express negation or the absence of something, but they are used in slightly different ways: Not: Denies actions, qualities, or manners (verbs, adjectives, adverbs). Ex.) "I should not eat candy" or "I do not play basketball" No: Denies nouns, indicating the absence of something. Ex.) "I have no money" or "There are no dogs at the park"