How to Say “Don't Need To” with 不用 (bùyòng)
不用 (bùyòng) means “don't need to / no need to.” It's the negative of 要 (“need to”) and 得 (děi, “must”): Subject + 不用 + Verb Phrase. 孩子不用买票 (“kids don't need to buy a ticket”), 今天不用加班, 你不用担心. The trap is that “don't need to” is 不用, not 不要 (bùyào), which forbids the action (“don't!”).
Why this trips learners up
不用 (bùyòng) means “don't need to / no need to.” The frame is simple, Subject + 不用 + Verb Phrase, and it releases an obligation: the action is unnecessary, so you're free to skip it. 孩子不用买票 (“kids don't need to buy a ticket”), 今天不用加班 (“no need to work overtime today”), 你不用担心 (“you don't need to worry”), 不用谢 (“no need to thank me,” the everyday “you're welcome”).
Here's the trap the wiki flags. 要 (yào) has a “need to” meaning, so it feels natural to negate it as 不要 for “don't need to.” But that's wrong: 不要 (bùyào), like 别 (bié), forbids the action, it means “don't!” The “don't need to” negative of 要 is 不用. Compare 孩子不用买票 (“kids needn't buy a ticket,” it's not required) with 孩子不要买票 (“kids, don't buy tickets!,” an instruction not to). One removes a requirement; the other bans the act.
不用 is also the natural negative of two other modals. It negates 得 (děi, “must”): “you must go” is 你得去, and its negative is 你不用去 (“you don't have to go”), never 你不得去 (不得, bùdé, means “must not / may not,” the opposite). And it's the compact everyday version of 不需要 (bù xūyào, “don't need”): 你不用来 and 你不需要来 both work, 不用 just sounds lighter and more spoken. One more spelling caution: the word is 不用 (bùyòng), not 没用 (méiyòng), which is a different word meaning “useless.”
So keep the two poles apart. 不用 = it's not necessary (you don't have to, but you may); 不要 / 别 = it's not allowed (don't do it). If you're letting someone off a task, reassuring them, or waving away thanks, it's 不用; if you're telling them to stop or not to start, it's 不要 or 别. Quick test: could you add “...but you can if you like”? Then it's 不用.
The structure
Colour key
Each colour marks one grammatical role — and the same colour means the same role on every page in the Lab.
Examples in context
Real-world sentences, easiest first. Toggle pinyin or the translation, tap any word to see its role, or play the audio.
Tap a word to see its grammatical role.
bùyòng 不用 Pattern xiè 谢 Verb
No need to thank me (不用 + verb, the everyday “you're welcome”).
jīntiān 今天 Time bùyòng 不用 Pattern jiābān 加班 Verb
We don't need to work overtime today (不用 + verb, no subject needed).
háizi 孩子 Subject bùyòng 不用 Pattern mǎi 买 Verb piào 票 Object
Kids don't need to buy a ticket (不用 + verb + object).
zhè jiàn shì 这件事 Subject bùyòng 不用 Pattern gàosu 告诉 Verb tā 他 Object
You don't need to tell him about this (不用 releasing an action).
jīntiān 今天 Time rén 人 Subject bù 不 Negation duō 多 Adjective bùyòng ，不用 Pattern páiduì 排队 Verb
Not many people today, so no need to queue (不用 with a reason).
nǐ 你 Subject bùyòng 不用 Pattern guòqù 过去 Verb tā ，他 Subject huì 会 Function word guòlái 过来 Verb de 的 Function word
You don't need to go over, he'll come over (不用 + a directional verb).
gàosu 告诉 Verb tā 他 Object míngtiān 明天 Time bùyòng 不用 Pattern lái 来 Verb le 了 Function word
Tell him he doesn't need to come tomorrow (不用 + verb + 了, reported).
nǐmen 你们 Subject bùyòng 不用 Pattern dōu 都 Adverb lái 来 Verb lái ，来 Verb liǎng gè rén 两个人 Object jiù 就 Adverb gòu le 够了 Verb
You don't all need to come, two people is enough (不用 + 都).
Common mistakes
Why it happens: “Don't need to” is 不用, not 不要. 不要 (like 别) forbids the action, so 孩子不要买票 means “kids, don't buy tickets!” To say kids needn't buy one (it's not required), it's 孩子不用买票. 不用 removes a requirement; 不要 bans the act.
Why it happens: The negative of 得 (děi, “must”) is 不用, not 不得. “You must go” 你得去 becomes 你不用去 (“you don't have to go”). 不得 (bùdé) actually means “must not / may not,” the opposite of what you want, so it never negates “must” to “needn't.”
Why it happens: The word for “needn't” is 不用 (bùyòng), written with 不. 没用 (méiyòng) is a different word meaning “useless / no use,” so 今天没用加班 doesn't say “no need to work overtime today.” Use 不用 for absence of necessity; keep 没用 for “useless.”
Compare & contrast
| 不用 (bùyòng): no need to, unnecessary | 不要 / 别 (bùyào / bié): don't, a prohibition | The difference |
|---|---|---|
| 你不用来nǐ bùyòng lái = “you don’t need to come” (it’s unnecessary, coming is fine but pointless) | 你别来nǐ bié lái = “don’t come!” (a prohibition, the same as 你不要来) | 你不用来 = “you don't need to come,” releasing them (coming is fine but pointless). 你别来 = “don't come!,” a prohibition (the same force as 你不要来). Optional versus forbidden. |
| 这个不用买zhège bùyòng mǎi = “no need to buy this” (you already have it, or it’s provided) | 这个不要买zhège bùyào mǎi = “don’t buy this” (I don’t want it, or it’s a bad idea) | 这个不用买 = “no need to buy this,” it's unnecessary (you already have it, or it's provided). 这个不要买 = “don't buy this,” a refusal or warning off. Unnecessary versus refused. |
Try it yourself
Say “We don't need to work overtime today.” Subject + 不用 + verb phrase.
Related patterns
Quick reference card
How to Say “Don't Need To” with 不用 (bùyòng) grammar.merrymandarin.com A pocket summary — print it and keep it by your desk.