非A非B: Neither Category Applies in Chinese
非A非B
非A非B rejects two candidate categories in a balanced formal expression, often before identifying a third possibility or limiting the relationship. Each 非 directly negates one parallel noun or category. The pattern does not coordinate ordinary predicate negation, and the two slots should be comparable labels rather than unrelated actions or descriptions.
Published July 23, 2026
Reviewed July 23, 2026
01 / PATTERN
See the Structure
MODEL
Subject + 非 + Noun A + 非 + Noun B
Read the structure
非A非B rejects two candidate categories in a balanced formal expression, often before identifying a third possibility or limiting the relationship. Each 非 directly negates one parallel noun or category. The pattern does not coordinate ordinary predicate negation, and the two slots should be comparable labels rather than unrelated actions or descriptions. Keep the model Subject + 非 + Noun A + 非 + Noun B visible while you compare each sentence.
这场悲剧的制造者非你非我，另有其人。
The person responsible for this tragedy is neither you nor me, but someone else.
Choose the right context
Reject two possible identities before naming another. Define a relationship as belonging to neither of two categories. Use a concise formal balanced classification.
我们非敌非友，只是见过一面。
We are neither enemies nor friends; we have only met once.
Respect the boundary
Do not omit the second 非. Do not use 不 in one half and 非 in the other. Do not fill A and B with unrelated nonparallel constituents.
我们非敌友，只是见过一面。
(We are not enemy friend.)
Repair the pattern
The second negating marker is omitted: Each parallel category needs its own 非: 非敌 and 非友. Two different negators break the balanced frame: The target category-rejection frame requires the parallel form 非A非B, not mixed 非A不B.
我们非敌非友，只是见过一面。
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.
这场悲剧的制造者非你非我，另有其人。
The person responsible for this tragedy is neither you nor me, but someone else.
这
Subject
This part occupies the Subject position in the model pattern.
场
非
This part occupies the 非 position in the model pattern.
悲剧
Noun A
This part occupies the Noun A position in the model pattern.
的
非
This part occupies the 非 position in the model pattern.
制造
Noun B
This part occupies the Noun B position in the model pattern.
者
Subject
This part occupies the Subject position in the model pattern.
非
非
This part occupies the 非 position in the model pattern.
你
Noun A
This part occupies the Noun A position in the model pattern.
非我
非
This part occupies the 非 position in the model pattern.
，
Noun B
This part occupies the Noun B position in the model pattern.
另有
Subject
This part occupies the Subject position in the model pattern.
其
非
This part occupies the 非 position in the model pattern.
人
Noun A
This part occupies the Noun A 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.
这场悲剧的制造者非你非我，另有其人。
The person responsible for this tragedy is neither you nor me, but someone else.
我们非敌非友，只是见过一面。
We are neither enemies nor friends; we have only met once.
这种做法非奖非罚，更像一种提醒。
This measure is neither a reward nor a punishment, but more of a reminder.
04 / LIMITS
When to Use It — and When Not To
Use it when
- Reject two possible identities before naming another.
- Define a relationship as belonging to neither of two categories.
- Use a concise formal balanced classification.
Do not use it when
- Do not omit the second 非.
- Do not use 不 in one half and 非 in the other.
- Do not fill A and B with unrelated nonparallel constituents.
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.
我们非敌友，只是见过一面。
我们非敌非友，只是见过一面。
The second negating marker is omitted
Each parallel category needs its own 非: 非敌 and 非友.
这种做法非奖不罚。
这种做法非奖非罚。
Two different negators break the balanced frame
The target category-rejection frame requires the parallel form 非A非B, not mixed 非A不B.
我们非敌友，只是见过一面。
Each parallel category needs its own 非: 非敌 and 非友.
这种做法非奖不罚。
The target category-rejection frame requires the parallel form 非A非B, not mixed 非A不B.
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 非A非B.
07 / APPLY
Apply It in Your Sentence
Write one original sentence with 非A非B. 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
非A非B: Neither Category Applies Questions
How is 非A非B different from 既不A也不B?
非A非B is compact and often classifies nouns or identities. 既不A也不B is more productive for predicates.
Must A and B be opposites?
Not necessarily, but they must be comparable candidate categories within the same classification.
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—九063】, 四字格：非A非B (printed p. 243; PDF page 249)
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 sourceChinese: A Comprehensive Grammar, 2nd ed.
Yip and Rimmington · Routledge · 2016
Locator: Chapter 27, §27.1.4, parallel matching, page 458; Chapter 28, §§28.4.1–28.4.2, quadrisyllabic expressions and idioms, pages 503–507
Supports parallel matching inside fixed quadrisyllabic formations; GF supplies the repeated negative frame 非A非B.
Official source10 / CONTINUE
Continue with a Connected Rule
Compare
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Compare this lesson with 万万 strengthening a negative prohibition or impossibility; both belong to negative scope and emphatic polarity, but they organize a different sentence role or discourse job.
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