Chinese Negation (HSK 1): How to Use 不, 没, and 没有

When learning Mandarin Chinese, you will often need to express ideas such as “I don’t know,” “I don’t have money,” “I didn’t go to school yesterday,” or “I’m not going tomorrow.” Although all these sentences express negation, they do not use the same negative word. In Chinese, 不 (bù), 没 (méi), and 没有 (méiyǒu) are essential negative forms that HSK 1 learners need to understand. While they can all be translated as “not” or “no” in English, their meanings and grammatical functions differ depending on the context. This lesson explains how to form negative sentences using 不, 没, and 没有, how to distinguish between them, and how to avoid common mistakes in everyday Mandarin Chinese.

1. Overview of Basic Chinese Negation Patterns

The most important point is that you should not choose between 不 and 没 simply based on how the word “not” is translated into English. Instead, determine whether you are negating a habit, an intention, a state, possession, or whether an action has occurred.

2. How to Use 不 (bù) in Negative Sentences

不 is one of the most common negative adverbs in Mandarin Chinese. It usually appears before a verb or adjective to express that someone does not habitually perform an action, does not want to do something, or does not have a particular characteristic.

2.1. Using 不 to Negate Verbs

Pattern: Subject + 不 + Verb + …

Examples:

• 我不喝茶。 / Wǒ bù hē chá. / I don’t drink tea.
• 他不吃米饭。 / Tā bù chī mǐfàn. / He doesn’t eat rice.
• 我不喜欢喝牛奶。 / Wǒ bù xǐhuan hē niúnǎi. / I don’t like drinking milk.
• 她不看电视。 / Tā bú kàn diànshì. / She doesn’t watch television.

Compare:

我喝茶。 / Wǒ hē chá. / I drink tea.

我不喝茶。 / Wǒ bù hē chá. / I don’t drink tea.

Adding 不 before the verb 喝 changes the affirmative sentence into a negative sentence without changing the order of the other elements.

However, 我不喝茶 does not necessarily refer only to an action in the present. Depending on the context, it can describe a habit of not drinking tea or indicate that the speaker does not want tea in a particular situation.

2.2. Using 不 to Negate Intentions and Plans

不 commonly appears when a speaker wants to negate an intention, desire, or decision to perform an action.

Examples:

• 我不想去。 / Wǒ bù xiǎng qù. / I don’t want to go.
• 我明天不去学校。 / Wǒ míngtiān bú qù xuéxiào. / I’m not going to school tomorrow.
• 他今天不来。 / Tā jīntiān bù lái. / He isn’t coming today.
• 我不想买这个。 / Wǒ bù xiǎng mǎi zhège. / I don’t want to buy this.

In 我明天不去学校, 明天 (tomorrow) indicates that the action concerns the future. 不 is used to negate the intention or decision to go to school.

This shows that 不 is not limited to sentences about the present. It can also be used when talking about future actions.

2.3. Using 不 to Negate Adjectives

In Mandarin Chinese, adjectives can function directly as predicates to describe characteristics or states. To negate these characteristics, 不 is usually placed before the adjective.

Pattern: Subject + 不 + Adjective

Examples:

• 今天不冷。 / Jīntiān bù lěng. / It isn’t cold today.
• 我不忙。 / Wǒ bù máng. / I’m not busy.
• 这个苹果不大。 / Zhège píngguǒ bú dà. / This apple isn’t big.
• 这本书不贵。 / Zhè běn shū bú guì. / This book isn’t expensive.
• 这个菜不好吃。 / Zhège cài bù hǎochī. / This dish doesn’t taste good.

Compare:

今天很热。 / Jīntiān hěn rè. / It’s hot today.

今天不热。 / Jīntiān bú rè. / It isn’t hot today.

In a basic negative sentence, 不 appears directly before the adjective 热. There is no need to add 是 to form the negative sentence.

2.4. Pronunciation Rules for 不

The original tone of 不 is the fourth tone, pronounced bù. However, when it appears immediately before a syllable with the fourth tone, 不 usually changes to the second tone, pronounced bú.

Examples:

• 不是 / bú shì / Not to be
• 不去 / bú qù / Not going
• 不看 / bú kàn / Not watching
• 不大 / bú dà / Not big
• 不贵 / bú guì / Not expensive

When 不 appears before syllables with the first, second, or third tone, it generally retains its fourth tone.

Examples:

• 不喝 / bù hē / Not drinking
• 不忙 / bù máng / Not busy
• 不好 / bù hǎo / Not good

This is an important tone-change rule in Mandarin Chinese. When practicing speaking, pay attention to both grammatical structure and pronunciation to make your sentences sound more natural.

3. How to Use 没 (méi) and 没有 (méiyǒu)

没 and 没有 are commonly used to indicate that an action did not happen, has not been performed, or that someone does not possess something.

In many sentences negating actions, 没 and 没有 can be used interchangeably. However, when negating possession, 没有 is the complete form and is particularly useful for beginners.

3.1. Using 没 and 没有 to Negate Actions

Pattern: Subject + 没/没有 + Verb + …

Examples:

• 我昨天没去学校。 / Wǒ zuótiān méi qù xuéxiào. / I didn’t go to school yesterday.
• 他昨天没有来。 / Tā zuótiān méiyǒu lái. / He didn’t come yesterday.
• 我今天没看电视。 / Wǒ jīntiān méi kàn diànshì. / I haven’t watched television today.
• 我没有买这个。 / Wǒ méiyǒu mǎi zhège. / I didn’t buy this.

In 我昨天没去学校, 没 negates the action of going to school yesterday. The speaker indicates that the action did not occur.

You can also say:

我昨天没有去学校。 / Wǒ zuótiān méiyǒu qù xuéxiào. / I didn’t go to school yesterday.

In this case, both 没 and 没有 can be used without changing the basic meaning of the sentence.

An important point is that 没 is not simply a marker of the past tense. Its main function is to negate whether an action occurred or was completed by the relevant point in time.

3.2. Using 没有 to Negate Possession

有 (yǒu) means “to have.” When expressing that someone does not have something, Mandarin Chinese uses 没有 rather than 不有.

Pattern: Subject + 没有 + Noun/Noun phrase

Examples:

• 我没有钱。 / Wǒ méiyǒu qián. / I don’t have money.
• 他没有手机。 / Tā méiyǒu shǒujī. / He doesn’t have a mobile phone.
• 我没有哥哥。 / Wǒ méiyǒu gēge. / I don’t have an older brother.
• 她没有电脑。 / Tā méiyǒu diànnǎo. / She doesn’t have a computer.
• 我今天没有时间。 / Wǒ jīntiān méiyǒu shíjiān. / I don’t have time today.

Compare:

我有手机。 / Wǒ yǒu shǒujī. / I have a mobile phone.

我没有手机。 / Wǒ méiyǒu shǒujī. / I don’t have a mobile phone.

To negate possession, simply replace 有 with 没有. Do not say 我不有手机.

In everyday conversation, 没 can also appear in shorter expressions such as 我没钱 (I don’t have money). However, beginners should first become comfortable with the complete structure using 没有 before learning shortened forms.

3.3. Using 没有 to Negate Existence

Besides possession, 没有 can also indicate that a person or object is not present in a particular location.

Examples:

• 这里没有人。 / Zhèlǐ méiyǒu rén. / There is nobody here.
• 房间里没有电脑。 / Fángjiān lǐ méiyǒu diànnǎo. / There is no computer in the room.
• 桌子上没有书。 / Zhuōzi shàng méiyǒu shū. / There are no books on the table.

In 房间里没有电脑, 没有 does not describe someone’s possession. Instead, it indicates that no computer exists in the room.

This is another use of 没有, but it shares the same basic meaning of negating the presence or existence of something.

4. Difference Between 不 and 没/没有

This is the most important part of learning Chinese negation. Although 不 and 没/没有 can both be translated as “not,” they cannot be freely substituted for each other.

4.1. Comparison of 不 and 没/没有

4.2. Comparing Two Sentences with the Same Verb

Consider these two sentences:

我不吃米饭。 / Wǒ bù chī mǐfàn. / I don’t eat rice.

我没吃米饭。 / Wǒ méi chī mǐfàn. / I didn’t eat rice.

The first sentence can describe a habit of not eating rice or indicate that the speaker does not want to eat rice in the current situation.

The second sentence negates the occurrence of eating rice within a particular period or situation.

Similarly:

他不来。 / Tā bù lái. / He isn’t coming.

他没来。 / Tā méi lái. / He didn’t come.

他不来 usually concerns an intention, decision, or information that someone will not come. In contrast, 他没来 indicates that the person did not arrive by the relevant point in time.

Therefore, the difference between 不 and 没 is not simply about time. It also depends on what the speaker intends to negate.

4.3. 不 Does Not Always Mean Present, and 没 Does Not Always Mean Past

A common beginner explanation is that 不 is used for the present and future, while 没 is used for the past. This can be a useful initial guideline, but it does not fully reflect actual Chinese usage.

For example:

我昨天不想去。 / Wǒ zuótiān bù xiǎng qù. / I didn’t want to go yesterday.

Although the sentence contains 昨天 (yesterday), 不 is still used because the speaker is negating a desire, not stating that the action of going did not occur.

On the other hand:

我今天还没吃饭。 / Wǒ jīntiān hái méi chī fàn. / I still haven’t eaten today.

This sentence describes an action that has not been performed up to the present moment, rather than simply reporting an event in the past.

Therefore, remember that 不 generally negates intentions, habits, choices, or states, while 没/没有 commonly negates the occurrence of an action, possession, or existence.

5. Negating 是, 有, Verbs, and Adjectives

To use negative sentences correctly, beginners should learn how to negate the basic sentence patterns introduced in earlier lessons.

5.1. Negating 是

Pattern: Subject + 不是 + Noun/Noun phrase

Examples:

• 我不是学生。 / Wǒ bú shì xuésheng. / I’m not a student.
• 他不是老师。 / Tā bú shì lǎoshī. / He isn’t a teacher.
• 这不是我的书。 / Zhè bú shì wǒ de shū. / This isn’t my book.

是 is negated using 不, forming 不是. Do not use 没是 to express this meaning.

5.2. Negating 有

Pattern: Subject + 没有 + Noun/Noun phrase

Examples:

• 我没有书。 / Wǒ méiyǒu shū. / I don’t have any books.
• 他没有车。 / Tā méiyǒu chē. / He doesn’t have a car.
• 她没有妹妹。 / Tā méiyǒu mèimei. / She doesn’t have a younger sister.

When negating 有, use 没有.

5.3. Negating Verbs

Verbs can be used with either 不 or 没/没有, but the meaning changes depending on which negative form is chosen.

Examples:

• 我不买。 / Wǒ bù mǎi. / I won’t buy it.
• 我没买。 / Wǒ méi mǎi. / I didn’t buy it.
• 他不去。 / Tā bú qù. / He isn’t going.
• 他没去。 / Tā méi qù. / He didn’t go.

In these examples, 不 generally negates the intention or decision to perform an action, while 没 negates whether the action occurred.

5.4. Negating Adjectives

Pattern: Subject + 不 + Adjective

Examples:

• 我不忙。 / Wǒ bù máng. / I’m not busy.
• 今天不热。 / Jīntiān bú rè. / It isn’t hot today.
• 这个不贵。 / Zhège bú guì. / This isn’t expensive.
• 这本书不大。 / Zhè běn shū bú dà. / This book isn’t big.

In ordinary descriptive sentences, 不 is used before adjectives.

You should not replace 不 with 没 in basic sentences such as 我不忙 or 今天不热. In more advanced structures, 没 can appear with certain adjectives to negate changes of state, but that is not the basic type of negation covered in this lesson.

6. How to Use 不要 (búyào) to Tell Someone Not to Do Something

In addition to 不 and 没/没有, HSK 1 learners also encounter 不要, which is commonly used to tell, advise, or prevent someone from doing something.

Pattern: 不要 + Verb + …

Examples:

• 不要说话。 / Búyào shuōhuà. / Don’t talk.
• 不要喝这个。 / Búyào hē zhège. / Don’t drink this.
• 不要买。 / Búyào mǎi. / Don’t buy it.
• 不要看电视。 / Búyào kàn diànshì. / Don’t watch television.

Compare:

我不看电视。 / Wǒ bú kàn diànshì. / I don’t watch television.

不要看电视。 / Búyào kàn diànshì. / Don’t watch television.

The first sentence negates the speaker’s action. The second is a request or piece of advice telling someone else not to perform an action.

Therefore, 不要 is not simply interchangeable with 不 in every negative sentence. It has a specific function when expressing advice, requests, or prohibitions.

7. Common Mistakes When Forming Negative Sentences

Beginners often make mistakes because they translate negation directly from English or do not clearly distinguish the functions of 不 and 没.

In this table, the sentences are evaluated according to the intended English meaning. Some combinations, such as 不去 or 没想, can be correct in other contexts, but they do not express the same meaning as the examples being discussed.

To avoid confusion, ask yourself a simple question before choosing a negative word: Do I want to say that I don’t usually do something, don’t want to do it, haven’t performed an action, or don’t possess something?

If you are negating a desire, habit, or characteristic, you will usually use 不. If you are negating whether an action occurred, think of 没 or 没有. If you want to say that someone does not have something, use 没有.

An effective practice method is to create two sentences using the same verb but different negative words, then explain how their meanings differ.

For example:

我不买这个。 / Wǒ bù mǎi zhège. / I won’t buy this.

我没买这个。 / Wǒ méi mǎi zhège. / I didn’t buy this.

Practicing this way helps you understand the function of each negative word rather than simply memorizing a formula.

Negation is an essential part of HSK 1 Chinese grammar. Once you understand 不, 没, and 没有, you can express basic ideas such as not liking something, not wanting to do something, not having something, not having completed an action, or an action not occurring.

The most important point is to distinguish the function of each negative form. 不 commonly negates habits, intentions, choices, and characteristics; 没/没有 generally negates whether an action occurred; and 没有 is used to negate possession or existence.

You should also remember the structure with 不要 when advising or telling someone not to do something.

Instead of memorizing isolated rules, practice using pairs of sentences with the same verb but different negative forms. Once you understand how their meanings differ, you will be able to form negative sentences more accurately and naturally in everyday Mandarin Chinese.