Nominal Subjects in Chinese
名词性主语
A Mandarin subject may be a pronoun, a name, or a fuller noun phrase. It normally appears before the predicate and identifies what the sentence is about. The subject phrase must remain internally complete: demonstratives, numbers, classifiers, and modifiers stay with its head noun rather than moving into the predicate.
Published July 23, 2026
Reviewed July 23, 2026
01 / PATTERN
See the Structure
MODEL
Noun Phrase + Predicate
Read the structure
A Mandarin subject may be a pronoun, a name, or a fuller noun phrase. It normally appears before the predicate and identifies what the sentence is about. The subject phrase must remain internally complete: demonstratives, numbers, classifiers, and modifiers stay with its head noun rather than moving into the predicate. Keep the model Noun Phrase + Predicate visible while you compare each sentence.
我姐姐是老师。
My older sister is a teacher.
Choose the right context
Use a person or thing noun phrase before a predicate as its subject. Use a pronoun as a compact subject when its referent is known. Use a complete quantified noun phrase as the subject of a shared statement.
这个孩子很高兴。
This child is happy.
Respect the boundary
Do not place an ordinary subject after its predicate in a neutral statement. Do not separate the subject's classifier from its head noun. Do not add 是 merely because the subject is followed by an adjective.
这个孩子了很高兴。
(This child is happy.)
Repair the pattern
Aspect particle inserted between subject and predicate: Perfective 了 cannot attach to the subject noun phrase 这个孩子 or occupy the slot before its adjectival predicate 很高兴. Classifier detached from the subject noun: 三本书 is one complete subject phrase; 都 follows that phrase and cannot split classifier from noun.
这个孩子很高兴。
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.
我姐姐是老师。
My older sister is a teacher.
我
Noun Phrase
This part occupies the Noun Phrase position in the model pattern.
姐姐
Predicate
This part occupies the Predicate position in the model pattern.
是
Noun Phrase
This part occupies the Noun Phrase position in the model pattern.
老师
Predicate
This part occupies the Predicate 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.
我姐姐是老师。
My older sister is a teacher.
这个孩子很高兴。
This child is happy.
三本书都很新。
All three books are new.
04 / LIMITS
When to Use It — and When Not To
Use it when
- Use a person or thing noun phrase before a predicate as its subject.
- Use a pronoun as a compact subject when its referent is known.
- Use a complete quantified noun phrase as the subject of a shared statement.
Do not use it when
- Do not place an ordinary subject after its predicate in a neutral statement.
- Do not separate the subject's classifier from its head noun.
- Do not add 是 merely because the subject is followed by an adjective.
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.
这个孩子了很高兴。
这个孩子很高兴。
Aspect particle inserted between subject and predicate
Perfective 了 cannot attach to the subject noun phrase 这个孩子 or occupy the slot before its adjectival predicate 很高兴.
三本都书很新。
三本书都很新。
Classifier detached from the subject noun
三本书 is one complete subject phrase; 都 follows that phrase and cannot split classifier from noun.
这个孩子了很高兴。
Perfective 了 cannot attach to the subject noun phrase 这个孩子 or occupy the slot before its adjectival predicate 很高兴.
三本都书很新。
三本书 is one complete subject phrase; 都 follows that phrase and cannot split classifier from noun.
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 名词性主语.
07 / APPLY
Apply It in Your Sentence
Write one original sentence with 名词性主语. 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
Nominal Subjects Questions
Can a sentence omit its subject?
Yes when context supplies it, but an expressed subject normally comes before the predicate.
Can a time phrase come before the subject?
Yes. A clause-level time frame may precede the subject without becoming the grammatical subject.
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, Level 1 item 【一24】 (PDF pp. 179-180)
Provides official Level 1 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 4, Phrase order in the Mandarin sentence; subject and predicate order
Describes subjects as nominal expressions before the predicate and distinguishes them from clause-level frames.
Official source10 / CONTINUE
Continue with a Connected Rule
Compare
动词/形容词作谓语Basic Verb and Adjective Predicates
Compare 名词性主语 as the statement object and 动词 as the adjective predicate providing the statement content, and distinguish the two syntactic roles of subject and predicate.
Easy to confuse
动词谓语句Basic Subject-Verb-Object Order
Compare 名词性主语 with the complete 动词谓语句 to avoid mistaking thematic noun phrases for objects.
Compare
主谓谓语句Topic-Comment Predicate Sentences
Compare the syntactic subject identity of 名词性主语 with the outer topic of 主谓谓语句 to avoid marking the noun at the beginning of the sentence as the subject.
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Compare
Compare 名词性主语 as the statement object and 动词 as the adjective predicate providing the statement content, and distinguish the two syntactic roles of subject and predicate.