Difference between revisions of "Comparing "bu" and "mei""
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<li class="x">我 上个 周末 <strong>不</strong> 跟 他 见面。<span class="pinyin">Wǒ shànggè zhōumò <strong>bù</strong> gēntā jiànmiàn .</span><span class="trans">I didn't see him last weekend .</span></li>
 
<li class="x">我 上个 周末 <strong>不</strong> 跟 他 见面。<span class="pinyin">Wǒ shànggè zhōumò <strong>bù</strong> gēntā jiànmiàn .</span><span class="trans">I didn't see him last weekend .</span></li>
 
<li class="x">  上周 我们  <strong>不</strong> 开会。<span class="pinyin">Shàngzhōu wǒmen <strong>bù</strong> kāihuì .</span><span class="trans">We didn't have a meeting last week.</span></li>
 
<li class="x">  上周 我们  <strong>不</strong> 开会。<span class="pinyin">Shàngzhōu wǒmen <strong>bù</strong> kāihuì .</span><span class="trans">We didn't have a meeting last week.</span></li>
−
<li class="x"> 你 <strong>不</strong>  去 <span class="pinyin">Wǒ zuótiān <strong>bù</strong> hē pútáojiǔ.</span><span class="trans">I not drink wine yesterday.</span></li>
+
<li class="x"> 上个月 你 <strong>不</strong>  去 北京 吗？ <span class="pinyin"> Shànggèyuè nǐ<strong>bù</strong> qù Běijīng ?</span><span class="trans">Did you not go to Beijing last month?</span></li>
  
 
</ul>
 
</ul>

Revision as of 01:45, 30 June 2015

Both 不 (bù) and 没 (méi) can be placed in front of a verb or adjective to negate its meaning. However, 不 (bù) and 没 (méi) are not usually interchangeable, so it's important to learn when you must use 不 (bù) as opposed to 没 (méi), and vice versa.

不 is for negating in the present and future

不 (bù) is generally used to negate an action that you do not want to do or do not intend to do (in the future). So expressing things like "I don't want to go" or "I'm not going" would be uses of 不 (bù).

Structure

Subject + 不 + Verb

Examples

Whether it's "don't wanna do it" or "not gonna do it," use 不 (bù):

  • 我 今天 晚上 不 吃 饭 。 Wǒ jīntiān wǎnshang bù chī fàn. I am not eating tonight.
  • 我 今天 晚上 不 想 吃 饭 。 Wǒ jīntiān wǎnshang bù xiǎng chī fàn. Tonight I don't want to eat.
  • 他 不 去 公园 。 Tā bù qù gōngyuán. He's not going to the park.
  • 他 不 要 去 公园 。 Tā bù yào qù gōngyuán. He doesn't want to go to the park.
  • 老板 今天 不 来 公司 。 Lǎobǎn jīntiān bù lái gōngsī. The boss won't come to work today.
  • 我 现在 不 知道 。 Wǒ xiànzài bù zhīdao. I don't know right now.
  • 我 知道 明天 不 下雨 。 Wǒ zhīdao míngtiān bù xiàyǔ. I know it's not going to rain tomorrow.
  • 我 不 想 跟 他 一起 去 。 Wǒ bù xiǎng gēn tā yīqǐ qù. I don't want to go with him.
  • 下 个 星期 我们 不 去 北京 ， 我们 去 上海 。 Xià gè xīngqī wǒmen bù qù Běijīng, wǒmen qù Shànghǎi. Next week we won't go to Beijing, we will go to Shanghai.
  • 很 多 孩子 不 要 很 便宜 的 东西 。 Hěn duō háizi bù yào hěn piányi de dōngxī. Many children don't want very cheap things.

不 is used to negate habitual actions

不 (bù) can be used to negate habitual actions, to express what you just aren't in the habit of doing, such as eating meat, or watching TV, or drinking alcohol. This is simply done by placing 不 (bù) in front of the verb.

Structure

Subject + 不 + Verb + Object

Examples

  • 我 不 吃 肉 。 Wǒ bù chī ròu. I don't eat meat.
  • 我 不 看 电视 。 Wǒ bù kān diànshì. I don't watch TV.
  • 我 不 喝 酒 。 Wǒ bù hē jiǔ. I don't drink alcohol.
  • 我 奶奶 不 用 手机 。 Wǒ nǎinai bù yòng shǒujī. My grandma doesn't use a cellphone.
  • 我 不 看 韩国 电影 。 Wǒ bù kān Hánguó diànyǐng. I don't watch Korean movies.
  • 他 不 喜欢 说话 。 Tā bù xǐhuan shuōhuà. He doesn't like to speak.
  • 在 中国 ， 我们 不 说 英文 。 Zài Zhōngguó, wǒmen bù shuō Yīngwén. In China, we don't speak english.
  • 这 个 国家 的 人 不 洗手 吗 ？ Zhè gè guójiā de rén bù xǐshǒu ma? Don't the people in this country wash their hands?
  • 他 从 来 不 说 别人 的 坏话 。 tā cóng lái bùshuō biérén de huài huà. He never speaks evil of people.
  • 我 不 用 手机 看书。 Wǒ bù yòng shǒujī kànshū. I don't use my phone to read books.

Please note that, while it is grammatically correct to use 没 (méi) in all the sentences above, 没 (méi) does not negate any habitual actions. The sentences above, if they contained 没 (méi) instead of 不 (bù), would express that the speaker didn't do the named activity (at one particular point in the past). So it would not be about habitual actions.

不 is normally used with adjectives

When it comes to a simple negation of an adjective (such as "not cold"), use 不 (bù).

Structure

不 + Adj

Examples

  • 面包 不 好吃 。 Miànbāo bù hǎochī. Bread is not good to eat.
  • 超市 不 远 。 Chāoshì bù yuǎn. The supermarket is not far away.
  • 今天 不 冷 。 Jīntiān bù lěng. Today it isn't cold.
  • 我 不 高兴 。 Wǒ bù gāoxìng. I am not happy.
  • 她 不 漂亮 。 Tā bù piàoliang. She is not pretty.
  • 你的 女朋友 不 难看 。 Nǐde nǚpéngyou bù nánkàn. Your girlfriend is not ugly.
  • 我们 不 饿 。 Wǒmen bù è. We're not hungry.
  • 你 不 聪明 。 Nǐ bù cōngming. You are not clever.
  • 我 觉得 Starbucks 的 咖啡 不 贵 。 Wǒ juéde Starbucks de kāfēi bù guì. I think the coffee at Starbucks isn't expensive.
  • 北京 的 夏天 不 长。 Běijīng de xiàtiān bù cháng. The summer in Beijing is not long.

不 is used to ask questions

There are couple ways to use 不 (bù) to ask questions. One such way is through affirmative-negative questions. This is done by stating a verb and then immediately repeating that verb in a negative state (with 不 (bù)):

Structure

Subject + Verb + 不 + Verb + Object


Examples

  • 你 是 不 是 我的 老师 ？Nǐ shì bù shì wǒde lǎoshī? Are you my teacher or not?
  • 今天 你 来 不 来 ？ Jīntiān nǐ lái bù lái? Are you coming today? (Literally: Today you come-not come?)
  • 你 喜 不 喜欢 吃 中国菜?Nǐ xǐ bù xǐhuān chī Zhōngguó cài?Do you like to Chinese food? (Literally: Do you like-not like Chinese food?)
  • 你 在 这里 ， 想 不 想 妈妈 ？ Nǐ zài zhèlǐ, xiǎng bù xiǎng māma? You are here, do you miss your mom or not?
  • 我们 去 不 去 北京 ？ Wǒmen qù bù qù Běijīng? Are we going to Beijing or not?
  • 你 喝 不 喝 茶 ？ Nǐ hē bù hē chá? Do you drink tea or not?
  • 你 爱 不 爱 我 ？ Nǐ ài bù ài wǒ? Do you love me or not?
  • 吃 不 吃 冰淇淋 ？ Chī bù chī bīngqílín? Do you eat ice cream or not?
  • 你 今天 上 不 上 课 ？ Nǐ jīntiān shàng bù shàng kè? Did you go to class today or not?
  • 你 买 不 买 ？ Nǐ mǎi bù mǎi? Are you buying or not?

不 (bù) can also be used to form tag questions. Tag questions use the positive-negative question form, but are placed at the end of the sentence. Tag questions are used to seek approval or acceptance for a statement, very similar to the English "OK?" or "right?" You can't use 没 (mèi) for this.

  • 我们 去 吃饭，好 不 好 ？ Wǒmen qù chīfàn, hǎo bù hǎo?Let's go eat, is that OK?
  • 你 是 我的 同学，对 不 对 ？ Nǐ shì wǒ de tóngxué, duì bù duì?You are my classmate, right?
  • 我们 喝 水，好 没 好。Wǒmen hē shuǐ, hǎo méi hǎo.Let's drink water, OK does not have OK?
  • 你 得 上 课，对 没 对。Nǐ dé shàngkè, duì méi duì.You should go to class, right not have right?

没 is used to negate past actions

没 (méi) and 没有 (méiyǒu) can both be used to negate actions that occurred in the past, or to say that something has not happened yet.

Structure

Subject + 没(有) + Verb + Object

Examples

  • 他 没有 打 电话 给 我。Tā méiyǒu dǎ diànhuà gěi wǒ.He did not give me a call.
  • 他 没 去 上课。Tā méi qù shàngkè.He did not go to class.
  • 我 昨天 没 喝 酒。Wǒ zuótiān méi hē jiǔ.I did not drink wine yesterday.
  • 妈妈 没有 做 晚饭。Māma méiyǒu zuò wǎnfàn.Mom did not cook dinner.
  • 老师 没 给 我 作业 。 Lǎoshī méi gěi wǒ zuòyè.The teacher didn't give me any homework.
  • 我 昨天 不 喝 酒 。Wǒ zuótiān bù hē jiǔ.I not drink wine yesterday.
  • 你 昨晚 不 回 家 吗？ Nǐ zuówǎn bù huíjiā ma?Did you not come home last night?
  • 我 上个 周末 不 跟 他 见面。Wǒ shànggè zhōumò bù gēntā jiànmiàn .I didn't see him last weekend .
  • 上周 我们 不 开会。Shàngzhōu wǒmen bù kāihuì .We didn't have a meeting last week.
  • 上个月 你 不 去 北京 吗？ Shànggèyuè nǐbù qù Běijīng ?Did you not go to Beijing last month?

There are a few things worth noting in these examples. For one, it is still grammatically correct to leave out the 有 (méiyǒu) in the sentences using 没有 (méiyǒu). Also, the sentence using 不 (bù) would be grammatically correct, if not for the 昨天 (zuótiān) ("yesterday") telling us that it is definitely the past we're talking about. That incorrect sentence using 不 (bù) would translate into: "I don't drink wine yesterday" as opposed to "I didn't drink wine yesterday."

Only 没 is used to negate 有

没 (méi) can be used to negate the verb 有 (yǒu) ("to have") to mean "do not have." You can only use 没 (méi) to convey this meaning. It is grammatically incorrect to use 不 (bù) to negate 有 (yǒu).

Structure

Subject + 没有 + Object

Examples

  • 我 没有 钱。Wǒ méiyǒu qián.I don't have money.
  • 我 不 有 钱。Wǒ bù yǒu qián.I not have money.
  • 他 没有 女朋友。Tā méiyǒu nǚ péngyǒu.He doesn't have a girlfriend.
  • 他 不 有 女朋友。Tā bù yǒu nǚ péngyǒu.He not have girlfriend.

There are times when you can leave out 有 (yǒu) entirely while still expressing 没有 (méiyǒu) (meaning "to not have" or "there is no"). One well-known example of this is 没办法 (méi bànfǎ) ("there is no way" [that's gonna happen]). Both 没 (méi) and 没有 (méiyǒu) are correct, however.

  • 我 没 办法 。 Wǒ méi bànfǎ. I don't have a way.
  • 我 没有 办法 。 Wǒ méiyǒu bànfǎ. I don't have a way.

(You can also use 没办法 (méi bànfǎ) to express other meanings.)

没 is used to make comparisons

没 (méi) or 没有 (méiyǒu) can be used to make simple comparisons meaning "not as... as...":

Structure

Noun 1 + 没有 + Noun 2 + Adjective

Examples

  • 我 的 钱 没有 他 的 钱 多。(Literally: "My money does not have his money many.")Wǒ de qián méiyǒu tā de qián duō.My money isn't as much as his.
  • 你 的 钱 不 有 他 的 钱 多。 Nǐ de qián bù yǒu tā de qián duō.My money not have much as his.
  • 你 没有 我 高兴。Nǐ méiyǒu wǒ gāoxìng.You are not as happy as me. (Literally: you do not have my happiness.)
  • 你 不 有 我 高兴。Nǐ bù yǒu wǒ gāoxìng.You not have my happy.

You can only use 没 (méi) or 没有 (méiyǒu) for this purpose, and not 不 (bù).

不 is used almost exclusively with some verbs

Certain verbs just don't get negated by 没 (méi) or 没有 (méiyǒu) ever. These include the verbs 是 (shì) ("to be") and 在 (zài) ("to be (in a place)"), as well as some psychological verbs such as 知道 (zhīdào) ("to know") and 认识 (rènshí) ("to know (a person)"). For these verbs, it's best to just take them on a case-by-case basis. Being aware of their existence can save you a fair bit of confusion.

  • 他 以前 不 是 我的 朋友 。 Tā yǐqián bù shì wǒ de péngyǒu.He was not my friend before.
  • 他 以前 没 是 我的 朋友 。 Tā yǐqián méi shì wǒ de péngyǒu.He did not is my friend before.
  • 昨天 我 不 知道 。 Zuótiān wǒ bù zhīdào.I didn't know yesterday.
  • 昨天 我 没 知道 。 Zuótiān wǒ méi zhīdào.I did not have know yesterday.
  • 他 以前 不 认识 她 。 Tā yǐqián bù rènshí tā.He did not know her before.
  • 他 以前 没 认识 她 。 Tā yǐqián méi rènshí tā.He not have know her before.
  • 昨天 我 不 在 家 。 Zuótiān wǒ bù zàijiā. I was not home yesterday.
  • 昨天 我 没 在 家 。 (Use of 没 with 在 is technically incorrect, but you sometimes hear it.)Zuótiān wǒ méi zàijiā.I did not at home yesterday.

Note that in non-standard Mandarin you might encounter exceptions to this rule. It's still useful to know the rule!

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