不 bù

不客气 bú kèqi — you're welcome 对不起 duìbuqǐ — sorry 不但 bùdàn — not only (... but also...) 不但 bú dàn — not only (... but also...) 不得不 bù dé bù — have no choice or option but to 不管 bù guǎn — no matter (what 不过 bú guò — only 不仅 bù jǐn — not only (this one) 差不多 chà bu duō — almost 来不及 lái bu jí — there's not enough time (to do sth) 受不了 shòu bù liǎo — unbearable 不安 bù ān — unpeaceful