Qhen we use not and when we use don't in a sentence?
"not" is used to negate a word or group of words.
"not" is often followed by adjectives and other adverbs. I am not hungry. I am not very hungry.
"not" is often followed by nouns and pronouns. He is not a scientist. They are not Koreans. It is not us that he is looking for.
"not" is often followed by the continuous form of verbs. They are not running. He is not studying. I am not planning to do that.
"not" can also follow -ing verbs. I am planning not to do that.
"don't" is always followed by a simple present tense verb, as in Anglika's examples.