非…不可: absolutely must
非…不可 (must, will not do otherwise) wraps a verb phrase to say something has to happen or is bound to happen. 他非去不可 means he has to go, and it is stronger than 必须 or 应该.
非…不可 expresses strong necessity or inevitability — stronger than 必须 or 应该.
- 这件事非你不可。(Only you can do this / It absolutely has to be you.)
- 他非去北京不可。(He absolutely must go to Beijing.)
- 今天非完成不可！(It absolutely must be finished today!)
Note: 非 here is classical Chinese for "not"; 不可 = "cannot" → double negative = strong affirmation. The pattern is formal and emphatic. Colloquially also used to express stubbornness or determination.
Worked examples
| Chinese | Pinyin | English | What it shows |
|---|---|---|---|
| 这个问题非专家来解决不可。 | Zhè gè wèn tí fēi zhuān jiā lái jiě jué bù kě. | This problem absolutely requires an expert to solve it. | 非 + NP + VP + 不可: subject-of-necessity is 专家 (expert must come) |
| 他非要亲眼看到不可，否则不相信。 | Tā fēi yào qīn yǎn kàn dào bù kě, fǒu zé bù xiāng xìn. | He absolutely must see it with his own eyes — otherwise he won't believe it. | 非要…不可 = insists on doing; 否则 (otherwise) introduces the consequence |
| 这次考试非考好不可，关系到能否升学。 | Zhè cì kǎo shì fēi kǎo hǎo bù kě, guān xì dào néng fǒu shēng xué. | This exam absolutely must be done well — it determines whether you advance. | 非 + V结果 + 不可: the result complement 好 is inside the 非…不可 frame |
Word by word
Each word in this pattern on its own: what it does here, the structure, three more examples, and the mistake to avoid.
非…不可 (fēi … bù kě)
A strong 'must'; it says the thing has to happen, with no other choice.
Structure: subject + 非 + verb phrase + 不可
| Chinese | Pinyin | English |
|---|---|---|
| 明天的会议很重要，你非参加不可。 | Míng tiān de huì yì hěn zhòng yào, nǐ fēi cān jiā bù kě. | Tomorrow's meeting is important; you absolutely must attend. |
| 孩子病得很重，非去医院不可。 | Hái zi bìng de hěn zhòng, fēi qù yī yuàn bù kě. | The child is very ill and has to go to the hospital. |
| 她非要买那条裙子不可。 | Tā fēi yào mǎi nà tiáo qún zi bù kě. | She insists on buying that skirt. |
Not: 你非来。 The pattern needs 不可 at the end; 非 alone does not mean must.
非…不可 is also explained in: Emphatic Constructions: 非…不可 (HSK 6).
What you need first
Every topic in GraphChinese names its own prerequisites, and these are the grammar points this one is built on. If a sentence here will not parse, one of them is why.
What this opens up
These patterns list 非…不可 among their own prerequisites, so they become readable once this one holds.
Questions about 非…不可
What does 非…不可 mean in Chinese?
非…不可 (must, will not do otherwise) wraps a verb phrase to say something has to happen or is bound to happen. 他非去不可 means he has to go, and it is stronger than 必须 or 应该. It is an HSK 4 grammar point.
How do you use 非…不可 in a sentence?
这个问题非专家来解决不可。 — Zhè gè wèn tí fēi zhuān jiā lái jiě jué bù kě. — This problem absolutely requires an expert to solve it. 非 + NP + VP + 不可: subject-of-necessity is 专家 (expert must come).
What do you need to know before 非…不可?
得 (děi) (HSK 4). This pattern is built out of them, so a sentence here that will not parse usually means one of them has not landed yet.
What does 非…不可 lead to?
Emphatic Constructions (HSK 6). Each of them names 非…不可 among its own prerequisites.
Is 非…不可 stronger than 必须?
Yes. 必须 states a rule, while 非…不可 adds emphasis, and with 要 it can show stubbornness: 他非要去不可。
Can I say 非…不行?
Yes, 非去不行 is also said in speech, and means the same as 非去不可。
非…不可 is one topic of 829. GraphChinese teaches them in prerequisite order, so this pattern reaches you on the day everything it rests on is proven. The whole course, HSK 0 through HSK 6, is $49 once for lifetime access.
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