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不能不 — pronunciations, definitions, and tags
HanziPinyinEnglishTags
不能不bùnéngbùhave toHSK 5, unknown, 18 strokes, rank #13624, Hard
不能不bùnéngbùcannot butHSK 5, unknown, 18 strokes, rank #13624, Hard
bùnéngbù(bu4neng2bu4)bu neng bu T4
  1. 1have to
  2. 2cannot but
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March 24, 2026

不能不bùnéngbù(bu4neng2bu4)

不能不 (bù néng bù) means 'cannot but' or 'have to', indicating an obligation or necessity that one cannot avoid. It is commonly used in contexts where a choice is not available, implying that the action is essential or unavoidable.

Strokes18Frequency#13624DifficultyHard
Cultural Note

The concept of obligation is deeply rooted in Chinese culture, often connected to social responsibilities and familial duties. 不能不 reflects the cultural value placed on fulfilling one's roles and commitments.

Memory Tip

Think of a person standing at a crossroads with signs pointing to 'do' and 'not do'. The character 不能 can be seen as a combination of 'not' (不) and 'able' (能), suggesting that at this point, they are unable to choose anything other than 'do'.

Meanings of 不能不

bùnéngbù(bu4neng2bu4)
1have to
2cannot but
Exercise 1 of 2

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About 不能不

不能不Simplified
18Strokes
—Radical
#—Frequency Rank
HSK 3.0L5IntermediateTOCFLL5HSKKL3CEFRB2

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AI Study Notes for 不能不

Usage Notes

This phrase is often used in informal speech but can also appear in formal writing. Be careful not to confuse it with similar phrases that imply choice, as 不能不 emphasizes necessity. It often collocates with verbs indicating actions that must be taken.

HSK Study Tips

While 不能不 is not specifically listed in HSK levels, it is relevant for learners reaching HSK 4 or higher, where expressing obligation becomes more common. Students should focus on how this phrase interacts with verbs to convey urgency or necessity.

Common Mistakes

Learners often mistakenly use 不能不 in situations where a choice exists. For example, saying '我不能不去' (I cannot not go) when it should be '我可以不去' (I can choose not to go) if there is indeed an option.

AI-enhanced 2026-03-24

Pronunciation of 不能不

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Component Characters

不bù(negative prefix)
HSK 14 strokes一
View full entry
能néngto be able to
HSK 110 strokes⺼
View full entry
不bù(negative prefix)
HSK 14 strokes一
View full entry

How to say have to in Chinese

“have to” in Chinese is不能不bùnéngbù

不能不 (bù néng bù) means 'cannot but' or 'have to', indicating an obligation or necessity that one cannot avoid. It is commonly used in contexts where a choice is not available, implying that the action is essential or unavoidable.

When to use 不能不

This phrase is often used in informal speech but can also appear in formal writing. Be careful not to confuse it with similar phrases that imply choice, as 不能不 emphasizes necessity. It often collocates with verbs indicating actions that must be taken.

What learners get wrong

Learners often mistakenly use 不能不 in situations where a choice exists. For example, saying '我不能不去' (I cannot not go) when it should be '我可以不去' (I can choose not to go) if there is indeed an option.

Write 不能不

不
能
不

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Usage Notes for 不能不

Understanding 不能不Grammar Tip

The phrase 不能不 is used to express an obligation or necessity, meaning 'cannot not' or 'must'. It emphasizes that one has to do something.

1

我不能不去参加这个会议。

I must attend this meeting.

Misunderstanding the nuanceCommon Error

Learners often confuse 不能不 with 只好, thinking they mean the same. 不能不 implies necessity or obligation, while 只好 suggests resignation to an unavoidable situation.

1

我不能不去见他。

I have to go meet him.

2

我只好去见他。

I have no choice but to meet him.

Exercise 1 of 1

Get it right

Type the missing word. Pinyin works; then pick the character.

我____去参加这个会议。

I must attend this meeting.

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Cultural Notes for 不能不

💡Did you know?

‘不能不’在中文中常用来表达一种强烈的义务感,尤其在正式场合或书面语中,它常常用来强调某事情的必要性。

📜Proverb

在中文中,有一句话说:‘事不宜迟,不能不做。’强调了及时行事的重要性。

Frequently Asked Questions about 不能不

While both 不能不 and 必须 (bìxū) convey a sense of necessity, they are used in slightly different contexts. 不能不 emphasizes that one has no other choice, while 必须 simply states that something is required. Thus, 不能不 carries a stronger connotation of obligation.

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