Negative adverb used before verbs, adjectives, and other adverbs to indicate negation; also used as a bound-form prefix to form terms with opposite meanings

to exceed or go beyond a certain limit; to surpass; (bound form) excessive; overly

Used between a verb and its result to show that the action cannot achieve that result; used as the negative form of the 得 de potential construction

Used after a verb to indicate crossing a space, winning a competition, or exceeding a limit; often used with 得 de or 不 bù to show potential