是 vs 叫 (shì vs jiào): classifying identity vs assigning a name
是 (shì) and 叫 (jiào) both link a subject to a noun, but they serve different purposes. 是 classifies or equates (e.g., nationality, profession, type), while 叫 specifically assigns a name or a term by which something is called. Understanding this distinction helps learners avoid confusing identity statements with name introductions.
是 is the standard copula (linking verb) in Chinese. It connects a subject to a noun phrase that defines, classifies, or identifies that subject. For example, 他是老师 (He is a teacher) or 这是一本书 (This is a book). 叫, on the other hand, focuses on naming: it introduces the name or title by which a person, place, or thing is known. For instance, 我叫小明 (I’m called Xiaoming) or 这只猫叫小花 (This cat is called Xiaohua). While 是 states what something is, 叫 states what something is called. Both structures are grammatical and natural in their respective contexts, and they can sometimes overlap (e.g., when introducing a name, both 是 and 叫 can appear in the pattern 我的名字是… and 我的名字叫…, with 叫 emphasizing the name itself).
When to use each
Use 是 to state identity, classification, or equivalence. It works for describing what something is: nationality (我是中国人 – I am Chinese), profession (他是医生 – He is a doctor), relationships (她是我妹妹 – She is my sister), and attributes (这个苹果是红的 – This apple is red). 是 is also used in definitions and definitions-like statements (一加一是二 – One plus one is two). It is the default copula for equating two noun phrases.
Use 叫 to give the name or title of a person, place, or thing. It is the go-to verb when introducing oneself or others by name: 我叫王明 (I am called Wang Ming), 他叫李华 (He is called Li Hua). 叫 can also be used for objects: 这个动物叫熊猫 (This animal is called panda). In informal contexts, 叫 can indicate a nickname or temporary title: 大家都叫他小王 (Everyone calls him Xiao Wang). For proper names of people, 叫 is more common than 是, but 是 can also appear in the pattern 我的名字是…, which is equally natural.
叫 can sometimes be used to mean 'to call' as in 'to summon' (e.g., 我叫你 – I call you), which is a different sense. In the naming sense, 叫 always implies a name or term; it does not classify identity in the way 是 does.
At a glance
| 是 | 叫 | |
|---|---|---|
| Function | Classifies or identifies what something is | Assigns a name or title |
| Typical use for people | Stating nationality, profession, relationship (我是学生 – I am a student) | Introducing a person's name (我是王明 – less common; more natural: 我叫王明 – I am called Wang Ming) |
| Typical use for objects | Stating type or category (这是书 – but classifier needed: 这是一本书 – This is a book) | Stating the name of an object (这个手机叫iPhone – This phone is called iPhone) |
| Negation | 不是 (bùshì) – not to be | 不叫 (bùjiào) – not to be called |
| Question form | 是…吗？ (shì…ma?) – Is it…? | 叫…吗？ (jiào…ma?) – Is it called…? |
Examples
- 是这是一本书。Zhè shì yī běn shū.This is a book.Uses a classifier (一本) because 书 is a countable noun. 是 classifies the object as a book.
- 是他是美国人。Tā shì měiguórén.He is an American.是 states nationality/identity.
- 叫我叫李小龙。Wǒ jiào Lǐ Xiǎolóng.My name is Bruce Lee. (literally: I am called Bruce Lee.)叫 introduces a personal name naturally.
- 叫你叫什么名字？Nǐ jiào shénme míngzì?What is your name?Common fixed question pattern for asking names.
- 是我的名字是张伟，我的名字也叫张伟。Wǒ de míngzì shì Zhāng Wěi, wǒ de míngzì yě jiào Zhāng Wěi.My name is Zhang Wei; my name is also called Zhang Wei.Both 是 and 叫 are natural in this construction. 是 emphasizes the name as an identity, 叫 emphasizes the naming act.
- 叫这本书叫《红楼梦》。Zhè běn shū jiào 《Hónglóumèng》.This book is called Dream of the Red Chamber.叫 is used to give the title of a book.
Common mistakes
- Using 叫 to classify identity (e.g., saying 我叫老师 to mean 'I am a teacher' is incorrect — use 我是老师).
- Using 是 when introducing a personal name in a casual context (e.g., saying 我是小明 instead of 我叫小明 is not wrong but sounds formal or like an official statement; 叫 is more natural for names).
- Omitting the classifier after 是 for countable nouns (e.g., 这是书 sounds incomplete; better: 这是一本书).
- Using 是 for the name of an object when 叫 is more appropriate (e.g., 这个动物是熊猫 is grammatical but means 'this animal is a panda (type)', not 'this animal is called panda' — the naming sense requires 叫).
FAQ
- When should I use 是 vs 叫 for introducing myself?
- Both are acceptable, but 叫 is more common and natural in everyday name introductions: 我叫李明. Using 是 (我是李明) is also correct but can sound slightly formal or as if you are emphasizing your identity (e.g., in a list). For most situations, 叫 is the go-to verb for names.
- Can 叫 be used for objects like animals or books?
- Yes, 叫 is commonly used to give the name of an object, animal, or thing: 这个狗叫阿里 (This dog is called Ali) or 这本书叫《西游记》 (This book is called Journey to the West). 是, in such cases, would classify the type, not the name.
- Is it true that '我的名字叫' is grammatically less standard than '我的名字是'?
- No. Both are perfectly standard and natural in modern Mandarin. 我的名字叫 emphasizes the name itself, while 我的名字是 emphasizes the name as an identity. There is no grammatical issue with either. You can use both interchangeably in most contexts.
- How do I choose between 是 and 叫 when stating someone's profession?
- For professions, always use 是: 他是医生 (He is a doctor). Using 叫 (他叫医生) would mean 'he is called doctor' (as a name or nickname), which is not the intended meaning. 是 classifies the person as a member of that profession.