不会 vs 不要: won’t vs don’t
不会 (bù huì) expresses that something won’t happen or that someone lacks the ability to do something (descriptive negation). 不要 (bù yào) is a negative command meaning “don’t” (imperative). The core distinction is that 不会 describes a fact or prediction, while 不要 issues an instruction or prohibition.
Both 不会 and 不要 are negative expressions, but they serve different functions. 不会 (bù huì) is used to indicate that something is unlikely to happen or that someone does not know how to do something—it is descriptive and often about future events or abilities. 不要 (bù yào) is used to tell someone not to do something—it is an imperative, a direct command or request. Understanding whether you are making a statement or giving an order is key to choosing the right one.
When to use each
Use 不会 to say that something is not going to happen (future negation) or that someone lacks a learned ability. It describes a fact or prediction, not a command. For example: 'He won’t come' (他来不了 is also possible, but 不会 is softer or less certain) or 'I can’t swim' (lack of skill).
不会 can also express a polite refusal when declining an invitation, similar to 'I won’t be able to' in English.
Use 不要 to tell someone not to do something. It is the negative form of the imperative 要 (yào, 'must', but used for commands as in 'do this'). 不要 directly forbids or advises against an action. For example: 'Don’t go!' or 'Don’t eat that.'
不要 can also mean 'do not want' when used with a verb, but in the imperative sense it is always a command. The context (tone, situation) clarifies whether it’s a prohibition or a statement of desire.
At a glance
| 不会 | 不要 | |
|---|---|---|
| Function | Descriptive: predicts or states inability | Imperative: issues a command |
| Type of negation | Negation of ability or future likelihood | Negation of permission / prohibition |
| Subject | Any grammatical subject (I, he, it, they) | Usually second person 'you' (implied) or a general 'one' |
| Equivalent English | won’t / can’t | don’t / must not |
| Politeness | Neutral to polite when used for refusal | Can be blunt; softer alternatives like 别 (bié) or 请不要 exist |
Examples
- 不会我不会去参加派对。Wǒ bù huì qù cānjiā pàiduì.I won’t go to the party.Describes a personal decision or prediction; not a command.
- 不会他不会说中文。Tā bù huì shuō zhōngwén.He can’t speak Chinese. (He hasn't learned the skill)Indicates lack of ability (learned skill).
- 不要不要在这里抽烟。Bù yào zài zhèlǐ chōuyān.Don’t smoke here.Direct prohibition.
- 不要不要跑！Bù yào pǎo!Don’t run!Urgent command.
- 不会我不会忘记你的。Wǒ bù huì wàngjì nǐ de.I won’t forget you.Promise about future behavior.
- 不要不要担心，我会帮你的。Bù yào dānxīn, wǒ huì bāng nǐ de.Don’t worry, I will help you.Advice/reassurance, not a prediction.
Common mistakes
- Using 不要 to mean 'won't' as in 'I won't go' — should use 不会.
- Using 不会 to give a command like 'Don't go!' — should use 不要.
- Confusing 不要 with 不用 (bù yòng, 'don’t need to') — 不要 is stronger, often a prohibition.
- Omitting the subject in 不会 sentences when it’s necessary for clarity; 不会 alone is often ambiguous.
FAQ
- When do I use 不会 vs 不要?
- Use 不会 when you want to say that something is not going to happen or someone cannot do something (e.g., 'He won’t come' = 他不会来). Use 不要 when you are telling someone not to do something (e.g., 'Don’t come' = 不要来). The key is whether you are describing a fact or issuing a command.
- Can 不会 be used as a polite way to decline?
- Yes. Saying 我不会去 (I won’t go) can be a polite refusal if you don’t want to accept an invitation, implying you are unable or unwilling. However, if you mean 'I don’t want to' specifically, 不想 (bù xiǎng) is more direct.
- Is 不要 always a command?
- Not always; 不要 can also mean 'do not want' when followed by a noun (e.g., 我不要咖啡, 'I don’t want coffee'). In that case it’s a statement of desire, not a command. Context determines the meaning.
- What’s the difference between 不要 and 别 (bié)?
- 别 is a shorter, slightly more colloquial negative command, often used in casual speech. 不要 is more formal and emphatic. For example, 别去 = 'Don’t go' (informal), 不要去 = 'Don’t go' (neutral to formal).