1. 不 - Negation of verb 不 can be placed before verbs to express negation.
2. 不 - Negation of adv. 不 can be placed before or after some adverbs to express negation. The position of 不 related to the adverb could represent different meanings of the sentences.
3. 不 - Negation of adj. 不 can be placed before adj. to express negation.
4. 不 - Negation of the complement clause 不 is placed between the verb and the verb complement to indicate inability to achieve the result.
5. 不 - Negation of modal verbs Modal verbs in Chinese are auxiliary verbs to express necessity or possibility. They are placed directly before other verbs. They are generally negated by 不.
6. 不 - Affirmative-negative clause Affirmative-negative clause can be formed with a positive verb followed by its negative form.
7. 不 - Tag questions Tag questions can be formed with an affirmative or negative question tag following the statement.
8. 不 - Double negation A double negative is a grammatical structure occurring when a sentence consists of two forms of negation.
9. 不 - Answer a question 不 alone can give a negative answer.
10. 不 - "no matter how" The conjunction 不论 or 不管 means "no matter how".
11. 不 - "neither…nor" The conjunction 既不-也不 means "neither…nor".
12. 不 - "without" 不 can be used as "without" in English.
13. 不 - "no need to" 不必,用不着 as adverbs mean "no need to".
14. 不 - Comparisons:不如 不如 in comparisons means A is 'not as good as' B.
15. 不 - 不要 "Don't" 不要 when used in an imperative sentence means "Don't".
16. 不 - "not only-but also" Conjunctions 不但-而且 and 不仅-而且 mean "not only-but also". To be noted, if the word followed 不 pronounces the fourth tone, 不 here should pronounce the second tone, such as 不但.
17. 不 - Contrast:不过，不然 The conjunction 不然 means "otherwise" ; 不过 means "however".
18. 不 - Conj.| 不是-就是, 不是-而是 The conjunction 不是-而是 means means "not A, but rather B."; 不是-就是 indicates 'either-or' .
19. 不 - 不 vs. 没 Both 不 and 没 can be placed in front of a verb or an adjective to negate its meaning. However, 不 and 没 usually are not interchangeable. 不 is generally used in present tense; 没 Negates Past Actions.
