Both 不 (bù) and 沒 (méi) are negative determiners in Chinese. They can be put in front of a verb or an adjective, in order to convert the statement into negative statement. Even though these two words are translated as ‘no’ or ‘not’ in English, there are notable differences between them. Learn how to express yes in Chinese as well.
不 (bù) can be used for negating actions in the present, and future, while 沒 (méi) is used for indicating what did not occur in the past, or something that has not completed yet.
我不喜歡吃麵。
我不喜欢吃面。
Wǒ bù xǐhuān chī miàn.
I do not like to eat noodles.
他明天不上班。
他明天不上班。
Tā míngtiān bù shàngbān.
He will not go to work tomorrow.
昨天沒下雨。
昨天没下雨。
Zuótiān méi xià yǔ.
It did not rain yesterday.
An additional 不 (bù) before the adjective will give a ‘not + adjective’ meaning. On the other hand, 沒 (méi) does not apply for the adjective.
Structure: Subject + 不 + Adjective
他不高。
他不高。
Tā bù gāo.
He is not tall.
沒有 (méi you), which can be shortened as 沒 (méi), is used for expressing ‘do not have’, ‘there is not’, or ‘there are not’.
Structure: Subject + 沒有/沒 + Noun
我沒有時間。
我没有时间。
Wǒ méiyǒu shíjiān.
I do not have time.
Certain verbs in Chinese can only use 不 (bù) as the negative determiner, regardless of time (past, present, future). For instances:
她不是美國人。
她不是美国人。
Tā bùshì měiguó rén.
She is not an American.
我昨天不在印尼。
我昨天不在印尼。
Wǒ zuótiān bùzài yìnní.
I was not in Indonesia yesterday.
我不知道她叫什麼名字。
我不知道她叫什么名字。
Wǒ bù zhīdào tā jiào shénme míngzì.
I don’t know what her name is.
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