| 1 | 不 | 不 | bù | bu4 | (negative prefix); not; no | | |
| 2 | 不能 | 不能 | bù néng | bu4 neng2 | cannot; must not; should not | | |
| 3 | 不同 | 不同 | bù tóng | bu4 tong2 | different; distinct; not the same; not alike | | |
| 4 | 不断 | 不斷 | bù duàn | bu4 duan4 | unceasing; uninterrupted; continuous; constant | | |
| 5 | 不仅 | 不僅 | bù jǐn | bu4 jin3 | not only (this one); not just (...) but also | | |
| 6 | 不会 | 不會 | bù huì | bu4 hui4 | without concealing anything; to pass away; to die; improbable; unlikely; will not (act, happen etc); not able; not having learned to do sth; (coll.) (Tw) don't mention it; not at all | | |
| 7 | 不过 | 不過 | bù guò | bu4 guo4 | only; merely; no more than; but; however; anyway (to get back to a previous topic); cannot be more (after adjectival) | | |
| 8 | 不要 | 不要 | bù yào | bu4 yao4 | don't!; must not | | |
| 9 | 不到 | 不到 | bù dào | bu4 dao4 | not to arrive; not reaching; insufficient; less than | | |
| 10 | 不少 | 不少 | bù shǎo | bu4 shao3 | many; a lot; not few | | |
| 11 | 不可 | 不可 | bù kě | bu4 ke3 | cannot; should not; must not | | |
| 12 | 不知 | 不知 | bù zhī | bu4 zhi1 | to be unable to endure; not to know; unaware; unknowingly; fig. not to admit (defeat, hardships, tiredness etc) | | |
| 13 | 不好 | 不好 | bù hǎo | bu4 hao3 | no good | | |
| 14 | 不但 | 不但 | bù dàn | bu4 dan4 | not only (... but also...) | | |
| 15 | 不了 | 不了 | bù le | bu4 le5 | no thanks (used to politely but informally decline) | | |
| 16 | 不再 | 不再 | bù zài | bu4 zai4 | not to be present; to be out; (euphemism) to pass away; to be deceased; no more; no longer | | |
| 17 | 不敢 | 不敢 | bù gǎn | bu4 gan3 | not dare to | | |
| 18 | 不行 | 不行 | bù xíng | bu4 xing2 | won't do; be out of the question; be no good; not work; not be capable | | |
| 19 | 不足 | 不足 | bù zú | bu4 zu2 | insufficient; lacking; deficiency; not enough; inadequate; not worth; cannot; should not | | |
| 20 | 不久 | 不久 | bù jiǔ | bu4 jiu3 | not long (after); before too long; soon; soon after | | |
| 21 | 不够 | 不夠 | bù gòu | bu4 gou4 | not enough; insufficient; inadequate | | |
| 22 | 不得 | 不得 | bù dé | bu4 de2 | must not; may not; not to be allowed; cannot | | |
| 23 | 不住 | 不住 | bù zhù | bu4 zhu4 | repeatedly; continuously; constantly; unable to (resist, conceal etc) | | |
| 24 | 不大 | 不大 | bù dà | bu4 da4 | not very; not too; not often | | |
| 25 | 不管 | 不管 | bù guǎn | bu4 guan3 | not to be concerned; regardless of; no matter | | |