不知…好: Uncertain What to Do in Chinese
不知……好
不知…好 frames uncertainty about the appropriate choice or action, often with 什么, 如何, or a verb. The unresolved option belongs between 不知 and the closing 好. This is not an information question requiring 吗; the frame cannot be reversed, interrupted by aspect marking, or left without the option under consideration.
Published July 23, 2026
Reviewed July 23, 2026
01 / PATTERN
See the Structure
MODEL
Subject + 不知 + Question expression / Verb phrase + 好
Read the structure
不知…好 frames uncertainty about the appropriate choice or action, often with 什么, 如何, or a verb. The unresolved option belongs between 不知 and the closing 好. This is not an information question requiring 吗; the frame cannot be reversed, interrupted by aspect marking, or left without the option under consideration. Keep the model Subject + 不知 + Question expression / Verb phrase + 好 visible while you compare each sentence.
这件事很复杂，我不知如何处理才好。
This matter is complex; I do not know how best to handle it.
Choose the right context
Express uncertainty about what action is appropriate. Use 如何 or 什么 inside a formal deliberative frame. Describe hesitation rather than ask a direct yes-no question.
面对这个选择，他不知说什么好。
Faced with this choice, he did not know what to say.
Respect the boundary
Do not add 吗 to the completed frame. Do not put 好 before the unresolved option. Do not omit the option under consideration.
我不知如何处理才好吗？
(I do not know how best to handle it yes-or-no?)
Repair the pattern
吗 is added to the deliberative frame: 如何 already supplies the unresolved content; sentence-final 吗 incorrectly converts the frame into a yes-no question. 好 precedes the unresolved option: The unresolved option follows 不知, while 好 closes the deliberative evaluation.
我不知如何处理才好。
Use the repaired structure without changing the intended meaning.
02 / MAP
Read the Sentence
Read from left to right and notice the job performed by each part. The labels describe this example; they are not a rule that every Chinese sentence must copy.
这件事很复杂，我不知如何处理才好。
This matter is complex; I do not know how best to handle it.
这
Subject
This part occupies the Subject position in the model pattern.
件
不知
This part occupies the 不知 position in the model pattern.
事
Question expression / Verb phrase
This part occupies the Question expression / Verb phrase position in the model pattern.
很
好
This part occupies the 好 position in the model pattern.
复杂
Subject
This part occupies the Subject position in the model pattern.
，
不知
This part occupies the 不知 position in the model pattern.
我
Question expression / Verb phrase
This part occupies the Question expression / Verb phrase position in the model pattern.
不知
好
This part occupies the 好 position in the model pattern.
如何
Subject
This part occupies the Subject position in the model pattern.
处理
不知
This part occupies the 不知 position in the model pattern.
才好
Question expression / Verb phrase
This part occupies the Question expression / Verb phrase position in the model pattern.
03 / EXAMPLES
Examples You Can Reuse
Keep the structure stable while changing the people, objects, times, or conditions. Pinyin is shown as reading support; use the Chinese sentence and translation to confirm the grammar relationship.
这件事很复杂，我不知如何处理才好。
This matter is complex; I do not know how best to handle it.
面对这个选择，他不知说什么好。
Faced with this choice, he did not know what to say.
两个方案各有利弊，我不知选哪个才好。
Both plans have pros and cons; I do not know which is best to choose.
04 / LIMITS
When to Use It — and When Not To
Use it when
- Express uncertainty about what action is appropriate.
- Use 如何 or 什么 inside a formal deliberative frame.
- Describe hesitation rather than ask a direct yes-no question.
Do not use it when
- Do not add 吗 to the completed frame.
- Do not put 好 before the unresolved option.
- Do not omit the option under consideration.
05 / REPAIR
Compare Right and Wrong
Compare the smallest meaningful change. Each explanation identifies a placement, scope, form, or clause relationship instead of treating the whole sentence as one undifferentiated mistake.
我不知如何处理才好吗？
我不知如何处理才好。
吗 is added to the deliberative frame
如何 already supplies the unresolved content; sentence-final 吗 incorrectly converts the frame into a yes-no question.
我不知好如何处理。
我不知如何处理才好。
好 precedes the unresolved option
The unresolved option follows 不知, while 好 closes the deliberative evaluation.
我不知如何处理才好吗？
如何 already supplies the unresolved content; sentence-final 吗 incorrectly converts the frame into a yes-no question.
我不知好如何处理。
The unresolved option follows 不知, while 好 closes the deliberative evaluation.
06 / PRACTICE
Practice the Grammar Point
Complete three short tasks in order: judge the pattern, repair a common error, and build the sentence. Feedback is fixed and reviewed, so these activities do not use a checker allowance.
1. Judge the sentence
2. Choose the correction
3. Build the sentence
Build a complete sentence with 不知……好.
07 / APPLY
Apply It in Your Sentence
Write one original sentence with 不知……好. Your draft moves to the checker through this browser session, selects this grammar point as the first review focus, and waits for you to submit.
08 / QUESTIONS
不知…好: Uncertain What to Do Questions
Is 不知…好 a direct question?
No. It reports the speaker's uncertainty, though the embedded option may contain a question expression.
Is 才 required before 好?
No. It is common in 如何…才好, while forms such as 不知说什么好 omit it.
09 / SOURCES
Sources and Review Notes
These references support different parts of the lesson. GF0025-2021 supports level placement only; professional grammar works support the explanation, limits, examples, and cross-checks. Their inclusion does not imply endorsement.
Chinese Proficiency Grading Standards for International Chinese Language Education (GF0025-2021)
Ministry of Education and State Language Commission · Ministry of Education of the PRC · 2021
Locator: GF0025-2021 Appendix A, combined Levels 7–9 item 【七—九080】, 固定格式：不知……好 (printed p. 245)
Supports placement in the official combined Levels 7-9 band; the exact site level remains an internal difficulty label; it does not independently establish the usage explanation.
Official sourceModern Mandarin Chinese Grammar: A Practical Guide, 3rd ed.
Ross, Ma, Chen, He and Yeh · Routledge · 2024
Locator: Chapter 28, §28.6, embedded content questions; Chapter 54, §54.2, uncertainty and advice
Supports retaining a question expression in its answer position inside a reported uncertainty rather than adding a yes-no particle.
Official source10 / CONTINUE
Continue with a Connected Rule
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