Formal Additive Adverb 亦 in Chinese
亦
亦 is a formal additive adverb equivalent to also or likewise. It stands after the subject or topic and before the predicate it adds to a parallel statement. It does not coordinate two noun phrases by itself, cannot follow the object it scopes over, and cannot take an aspect marker as its own suffix.
Published July 23, 2026
Reviewed July 23, 2026
01 / PATTERN
See the Structure
MODEL
Subject + 亦 + Predicate
Read the structure
亦 is a formal additive adverb equivalent to also or likewise. It stands after the subject or topic and before the predicate it adds to a parallel statement. It does not coordinate two noun phrases by itself, cannot follow the object it scopes over, and cannot take an aspect marker as its own suffix. Keep the model Subject + 亦 + Predicate visible while you compare each sentence.
本方案亦适用于小型企业。
This plan also applies to small businesses.
Choose the right context
Use 亦 before a predicate in formal prose. Use it to add a parallel fact about a new subject. Use it where the preceding discourse supplies an additive comparison.
他精通法语，亦会说西班牙语。
He is fluent in French and also speaks Spanish.
Respect the boundary
Do not use 亦 alone between two coordinated nouns. Do not place 亦 after the predicate object. Do not attach aspect 了 to 亦.
本方案亦了适用于小型企业。
(This plan also applies to small businesses.)
Repair the pattern
Aspect marker separates additive adverb and predicate: 亦 is an adverb before the predicate; it cannot bear perfective 了. Additive adverb is stranded after the object: Additive 亦 must precede the full predicate 值得关注.
本方案亦适用于小型企业。
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.
本方案亦适用于小型企业。
This plan also applies to small businesses.
本
Subject
This part occupies the Subject position in the model pattern.
方案
亦
This part occupies the 亦 position in the model pattern.
亦
Predicate
This part occupies the Predicate position in the model pattern.
适用
Subject
This part occupies the Subject position in the model pattern.
于
亦
This part occupies the 亦 position in the model pattern.
小型
Predicate
This part occupies the Predicate position in the model pattern.
企业
Subject
This part occupies the Subject 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.
本方案亦适用于小型企业。
This plan also applies to small businesses.
他精通法语，亦会说西班牙语。
He is fluent in French and also speaks Spanish.
这一变化亦值得关注。
This change also deserves attention.
04 / LIMITS
When to Use It — and When Not To
Use it when
- Use 亦 before a predicate in formal prose.
- Use it to add a parallel fact about a new subject.
- Use it where the preceding discourse supplies an additive comparison.
Do not use it when
- Do not use 亦 alone between two coordinated nouns.
- Do not place 亦 after the predicate object.
- Do not attach aspect 了 to 亦.
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.
本方案亦了适用于小型企业。
本方案亦适用于小型企业。
Aspect marker separates additive adverb and predicate
亦 is an adverb before the predicate; it cannot bear perfective 了.
这一变化值得关注亦。
这一变化亦值得关注。
Additive adverb is stranded after the object
Additive 亦 must precede the full predicate 值得关注.
本方案亦了适用于小型企业。
亦 is an adverb before the predicate; it cannot bear perfective 了.
这一变化值得关注亦。
Additive 亦 must precede the full predicate 值得关注.
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 亦.
07 / APPLY
Apply It in Your Sentence
Write one original sentence with 亦. 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
Formal Additive Adverb 亦 Questions
Is 亦 the same as 也?
Their additive function overlaps, but 亦 is strongly associated with formal written style.
Can 亦 join nouns like 和?
No. 亦 adds a predicate; noun-phrase coordination needs a conjunction such as 和 or 与.
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, official combined Levels 7-9 item 【七—九022】 (PDF p. 245)
Provides official combined Levels 7-9 directory placement and examples only; it does not establish the learner-facing usage explanation.
Official sourceModern Mandarin Chinese Grammar: A Practical Guide, 3rd ed.
Ross, Ma, Chen, He and Yeh · Routledge · 2024
Locator: Chapter 40, §§40.1–40.6, adding information
Supports additive adverbs before predicates; GF supplies formal 亦 as the exact lexical item.
Official source10 / CONTINUE
Continue with a Connected Rule
Compare
同/与Formal Coordination with 同 and 与
Distinguish the adverbial nature of 亦, add the conjunction of 与同与, and check whether it is a connecting component or a modified predicate.
Easy to confuse
及Formal Nominal Coordination with 及
亦 adds an equivalent judgment as an adverb, while 及 coordinates nominal items as a conjunction.
Continue learning
跟/和Coordinating Nouns with 跟 and 和
Compare adverbial 亦, which adds another judgment, with 跟 or 和, which coordinate noun phrases.
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Continue learning
Compare adverbial 亦, which adds another judgment, with 跟 or 和, which coordinate noun phrases.