Either... Or... in Statements (不是...就是...)
Grammar Rule in 30 Seconds
Use '不是...就是...' to express that if something isn't one thing, it must be the other.
- Place '不是' before the first option: 不是{喝|hē}茶
- Place '就是' before the second option: 就是{喝|hē}咖啡
- Combine them: 他不是{喝|hē}茶,就是{喝|hē}咖啡。
Overview
When you're faced with a situation where you believe only two outcomes are possible, and you're making a strong, almost certain deduction, Chinese provides a highly effective and common pattern: 不是...就是... (bùshì... jiùshì...). This structure translates most closely to "either...
or..." or "if it's not A, then it must be B." It is not merely a way to list options; rather, it expresses a firm logical conclusion. This pattern is fundamental for A1 learners as it introduces a critical way to articulate decisive thinking, offering a clear contrast to more general conjunctions that simply present choices without the same level of certainty.
This grammatical construction reflects a binary mindset, emphasizing that if one possibility is excluded, the other is the inevitable truth. It's a statement of strong conviction, often based on observation, prior knowledge, or logical inference. Understanding 不是...就是... (`bùshì...
jiùshì...`) allows you to convey confidence in your deductions, moving beyond simple factual statements to express a more nuanced, assertive perspective on possibilities. Its prevalence in daily conversation makes it an indispensable tool for expressing certainty in various contexts, from describing habitual actions to making informed guesses about current situations.
How This Grammar Works
不是...就是... (bùshì... jiùshì...) lies in its inherent logical structure. At its core, the pattern sets up a mutually exclusive relationship between two possibilities.不是 (bùshì) element negates the first option, implicitly stating, "it is not A." This negation then strongly propels the listener toward the second option, introduced by 就是 (jiùshì), meaning "then it must be B" or "it is certainly B." This isn't a casual presentation of choices but a definitive statement about the limited nature of reality in a given context.他不是学生就是老师。 (Tā bùshì xuéshēng jiùshì lǎoshī., "He's either a student or a teacher."), the speaker implies a strong belief that no other identity is plausible for "he." This contrasts sharply with patterns that simply list options without such a strong logical link.我朋友不是在工作就是在睡觉。 (Wǒ péngyǒu bùshì zài gōngzuò jiùshì zài shuìjiào., "My friend is either working or sleeping."). Here, 不是 (bùshì) rejects the idea that the friend is doing anything other than sleeping, given they are not working. The 就是 (jiùshì) then affirms sleeping as the only remaining possibility the speaker considers.Formation Pattern
不是...就是... (bùshì... jiùshì...) is straightforward, making it accessible even at the A1 level. It typically follows this formula:
他 | Tā | He |
不是 | 不是 | bùshì | is not / not |
在家里 | zài jiālǐ | at home |
就是 | 就是 | jiùshì | then is / must be |
在图书馆 | zài túshūguǎn | at the library |
她不是在学习就是在玩手机。 (Tā bùshì zài xuéxí jiùshì zài wán shǒujī.) – She is either studying or playing on her phone.
在学习 (studying) and 在玩手机 (playing on her phone) are both verb phrases.
这家餐厅不是中餐就是西餐。 (Zhè jiā cāntīng bùshì zhōngcān jiùshì xīcān.) – This restaurant serves either Chinese food or Western food.
中餐 (Chinese food) and 西餐 (Western food) are both nouns.
今天的天气不是太热就是太冷。 (Jīntiān de tiānqì bùshì tài rè jiùshì tài lěng.) – Today's weather is either too hot or too cold.
太热 (too hot) and 太冷 (too cold) are both descriptive phrases.
不是 (bùshì) and 就是 (jiùshì) function as a pair. You cannot use one without the other in this specific pattern to convey the intended meaning of exclusive deduction.
When To Use It
不是...就是... (bùshì... jiùshì...) pattern is primarily used in situations where you want to express a strong deduction or a confident guess based on limited, yet definitive, options. It conveys that, in your judgment, there are only two possibilities, and if one is not true, the other must be.- 1Describing Habits or Regular Occurrences: When observing someone's routine or a recurring event, this pattern highlights its predictable, binary nature.
我老板不是在开会就是在打电话。(Wǒ lǎobǎn bùshì zài kāihuì jiùshì zài dǎ diànhuà.) – My boss is either in a meeting or on the phone. (Implies a constant state of being busy, with these two activities consuming most of their time.)
- 1Making Confident Guesses about Current States: When you are fairly certain about the status or location of something or someone.
他没回信息,不是手机没电就是他太忙了。(Tā méi huí xìnxī, bùshì shǒujī méi diàn jiùshì tā tài máng le.) – He didn't reply to the message; his phone is either dead or he's too busy. (Expresses a strong belief about the reason for the lack of reply.)
- 1Expressing Certainty in Limited Choices: When the context inherently presents only two clear alternatives.
这个决定不是对的,就是错的。(Zhège juédìng bùshì duì de, jiùshì cuò de.) – This decision is either right or wrong. (Highlights the absolute, binary nature of the decision.)
- 1Implying Frustration or Exasperation: Sometimes, this pattern can carry a subtle tone of annoyance or resignation, suggesting that a situation repeatedly falls into one of two undesirable states.
这里的地铁不是晚点就是很挤。(Zhèlǐ de dìtiě bùshì wǎndiǎn jiùshì hěn jǐ.) – The subway here is either delayed or very crowded. (Conveys a common frustration with the public transport experience.)
- 1In Casual Social Commentary: It's frequently used in informal settings to make relatable observations about daily life or common experiences.
周末我不是在家看电影就是出去吃饭。(Zhōumò wǒ bùshì zài jiā kàn diànyǐng jiùshì chūqù chīfàn.) – On weekends, I either watch movies at home or go out to eat. (Describes typical weekend activities in a definitive, almost self-deprecating way.)
不是...就是... (bùshì... jiùshì...). You are asserting a high probability, almost a certainty, of one of two outcomes.Common Mistakes
不是...就是... (bùshì... jiùshì...). Recognizing these common errors and understanding the underlying reasons for them is crucial for mastering this pattern.- 1Confusing with Questions (
还是): The most frequent mistake is using不是...就是...(bùshì... jiùshì...) in questions. This pattern is exclusively for statements and assertions. For questions asking "A or B?", the correct conjunction is还是(háishì).
- Incorrect:
你不是吃面就是吃饭吗?(Nǐ bùshì chī miàn jiùshì chī fàn ma?) – (Incorrectly trying to ask: Are you eating noodles or rice?) - Correct:
你是吃面还是吃饭?(Nǐ shì chī miàn háishì chī fàn?) – Are you eating noodles or rice?
不是...就是... (bùshì... jiùshì...) in a question makes it sound like you are telling the listener what they must be doing, rather than asking for their choice or confirmation.- 1Attempting to Include More Than Two Options:
不是...就是...(bùshì... jiùshì...) is strictly a binary choice pattern. It implies a world where only two possibilities exist. If you need to list three or more options, you should use或者(huòzhě).
- Incorrect:
她不是去北京,就是去上海,就是去广州。(Tā bùshì qù Běijīng, jiùshì qù Shànghǎi, jiùshì qù Guǎngzhōu.) – (Incorrect: She's either going to Beijing, or Shanghai, or Guangzhou.) - Correct:
她要去北京、上海或者广州。(Tā yào qù Běijīng, Shànghǎi huòzhě Guǎngzhōu.) – She's going to Beijing, Shanghai, or Guangzhou.
- 1Lack of Grammatical Parallelism: As noted in the formation section, Option A and Option B must be parallel in their grammatical structure. Mixing noun phrases with verb phrases, for example, will sound awkward and incorrect.
- Incorrect:
我不是学生就是很累。(Wǒ bùshì xuéshēng jiùshì hěn lèi.) – (Incorrect: I'm either a student or very tired.) - Correct (maintaining parallelism):
我不是学生就是老师。(Wǒ bùshì xuéshēng jiùshì lǎoshī.) – I'm either a student or a teacher. - Correct (rephrased for parallelism):
我不是在学习就是在休息。(Wǒ bùshì zài xuéxí jiùshì zài xiūxí.) – I'm either studying or resting.
不是 (bùshì) and 就是 (jiùshì) belong to the same grammatical category.- 1Forgetting One Part of the Pair:
不是(bùshì) and就是(jiùshì) function as a cohesive unit. Omitting either component renders the sentence incomplete and changes the intended meaning.
- Incorrect:
他不是上班回家。(Tā bùshì shàngbān huí jiā.) – (Incorrect: He's not going to work or going home.) - Correct:
他不是上班就是回家。(Tā bùshì shàngbān jiùshì huí jiā.) – He's either going to work or going home.
不是...就是... (bùshì... jiùshì...) to express strong deductions and certainties in your Chinese communication.Real Conversations
不是...就是... (bùshì... jiùshì...) is a cornerstone of authentic Chinese communication, frequently appearing in both spoken and written contexts, from casual chats to social media posts. Its use signals a definitive, often observed, binary reality.
Scenario 1
Imagine you're talking about a friend who has a very predictable routine:
- A: 小李最近好像很忙。 (Xiǎo Lǐ zuìjìn hǎoxiàng hěn máng.) – Xiao Li seems very busy lately.
- B: 可不是吗!他不是在公司加班,就是在去健身房的路上。 (Kě bùshì ma! Tā bùshì zài gōngsī jiābān, jiùshì zài qù jiànshēnfáng de lùshàng.) – Isn't that right! He's either working overtime at the company or on his way to the gym.
This exchange uses 不是...就是... (bùshì... jiùshì...) to confidently describe Xiao Li's limited and predictable activities, implying there are no other possibilities for his busy schedule.*
Scenario 2
You're trying to figure out why someone hasn't replied to a message:
- A: 张老师怎么还没回复我邮件? (Zhāng lǎoshī zěnme hái méi huífù wǒ yóujiàn?) – Why hasn't Teacher Zhang replied to my email yet?
- B: 她不是在开会,就是手机静音没听到。她平时回邮件很快的。 (Tā bùshì zài kāihuì, jiùshì shǒujī jìngyīn méi tīngdào. Tā píngshí huí yóujiàn hěn kuài de.) – She's either in a meeting or her phone is on silent and she didn't hear it. She usually replies to emails very quickly.
Here, B uses the pattern to offer two highly probable and exclusive reasons, based on knowledge of Teacher Zhang's habits.*
Scenario 3
Discussing common characteristics of a place or situation:
- 这座城市的天气就是这样,不是下雨就是刮大风。 (Zhè zuò chéngshì de tiānqì jiùshì zhèyàng, bùshì xiàyǔ jiùshì guā dàfēng.) – The weather in this city is just like this; it's either raining or blowing strong winds.
This serves as a definitive statement about the city's weather, presenting a binary reality for its common conditions.*
Scenario 4
This pattern is concise and direct, making it suitable for informal written communication:
- 我老板:不是让我加班,就是催我写报告。 (Wǒ lǎobǎn: bùshì ràng wǒ jiābān, jiùshì cuī wǒ xiě bàogào.) – My boss: either makes me work overtime or rushes me to write reports.
This expresses a common complaint concisely, highlighting the two main actions the boss typically takes.*
These examples demonstrate how 不是...就是... (bùshì... jiùshì...) isn't just a grammar rule but a natural way to communicate strong, binary deductions in everyday Chinese, reflecting real-world observations and assumptions.
Quick FAQ
不是...就是... (bùshì... jiùshì...):- Q: Can
不是...就是...(bùshì... jiùshì...) be used without a subject?
Yes, if the context makes the subject clear. For example, if two people are present and it's obvious you're talking about them: 不是你就是他。 (Bùshì nǐ jiùshì tā.) – It's either you or him. This is common in more informal settings where the subject can be inferred.
- Q: Does this pattern always imply certainty, or can it be used for less confident guesses?
It generally implies a high degree of certainty or conviction from the speaker. If you are less confident and simply want to list possibilities, 或者 (huòzhě) is more appropriate. 不是...就是... (bùshì... jiùshì...) removes the ambiguity of mere suggestion.
- Q: Is there an equivalent to
neither... nor...using this structure?
No, 不是...就是... (bùshì... jiùshì...) expresses positive alternatives. For "neither A nor B," you would use a different structure like 既不...也不... (jì bù... yě bù...) or simply negative statements for both, e.g., 他不是学生也不是老师。 (Tā bùshì xuéshēng yě bùshì lǎoshī.) – He is neither a student nor a teacher.
- Q: Can I use
还(hái) or也(yě) with就是(jiùshì)?
Not directly within this fixed structure. The 就是 (jiùshì) itself carries a definitive force of "then it is," which makes additional adverbs like 还 (hái) (still) or 也 (yě) (also) redundant or grammatically awkward in this specific pairing. The 就是 (jiùshì) already emphasizes the "only" or "certainly" aspect.
- Q: Are there any specific tone differences when using
不是...就是...(bùshì... jiùshì...)?
While generally a statement of fact or deduction, the tone can vary. It can be neutral, reflective of a strong observation. However, it can also convey slight exasperation, resignation, or even a touch of dramatic flair, especially when describing repetitive or undesirable situations (e.g., traffic is always either bad or worse).
- Q: Is
不是...就是...(bùshì... jiùshì...) primarily for informal use, or can it be used in formal contexts?
It's quite versatile. It's very common in informal conversations due to its directness. However, you might also find it in slightly more formal settings when presenting a logical deduction or narrowing down possibilities, though perhaps in a less colloquial phrasing. Its use often depends more on the speaker's conviction and the need to present a binary outcome.
- Q: Does
就是(jiùshì) here mean the same as when it's used to emphasize a fact (e.g.,就是这样(jiùshì zhèyàng))?
Yes, the 就是 (jiùshì) here retains its emphatic function, signifying "precisely," "exactly," or "must be." In 不是...就是... (bùshì... jiùshì...), it emphasizes that the second option is the precise and inevitable outcome once the first is ruled out. It confirms the consequence of the initial negation.
- Q: Why does the CEFR level indicate A1, even though it seems like a nuanced pattern?
While it has nuances, the basic structure and core meaning are relatively simple and highly functional for beginners. A1 learners can quickly grasp the "either/or (with conviction)" concept and use it to make simple deductions about daily life. Mastery of its full range of implication, however, develops with higher CEFR levels.
- Q: Can I use
不是...就是...(bùshì... jiùshì...) to talk about past events?
Absolutely. The tense is conveyed by other elements in the sentence, or implied by context. For instance, 昨天他不是在家就是出去了。 (Zuótiān tā bùshì zài jiā jiùshì chūqù le.) – Yesterday, he was either at home or went out. The 了 (le) here indicates the completion of an action in the past.
Formation Pattern
| Subject | Part 1 | Option A | Part 2 | Option B |
|---|---|---|---|---|
|
他
|
不是
|
喝茶
|
就是
|
喝咖啡
|
|
我
|
不是
|
看书
|
就是
|
睡觉
|
|
天气
|
不是
|
冷
|
就是
|
热
|
|
这
|
不是
|
红色
|
就是
|
蓝色
|
|
你
|
不是
|
去
|
就是
|
不去
|
|
她
|
不是
|
老师
|
就是
|
学生
|
Meanings
This structure indicates that between two possibilities, one must be true. It implies a limited set of choices.
Exclusive Choice
Stating that one of two actions is definitely happening.
“她不是{去|qù}学校,就是{去|qù}图书馆。”
“这周末不是{下雨|xiàyǔ},就是{刮风|guāfēng}。”
Reference Table
| Form | Structure | Example |
|---|---|---|
|
Affirmative
|
Subj + 不是 + A + 就是 + B
|
他不是看书,就是睡觉。
|
|
Question
|
Subj + 是不是 + A + 就是 + B?
|
他是不是不是看书,就是睡觉?
|
|
Negative (rare)
|
Subj + 不是 + A + 也不是 + B
|
他不是看书,也不是睡觉。
|
|
Short Answer
|
不是A,就是B
|
不是看书,就是睡觉。
|
Formality Spectrum
您不是选择茶,就是选择咖啡。 (Ordering a drink)
你不是喝茶,就是喝咖啡。 (Ordering a drink)
不是喝茶,就是喝咖啡。 (Ordering a drink)
不喝茶就喝咖啡呗。 (Ordering a drink)
Binary Choice Concept
Actions
- 吃 eat
- 喝 drink
States
- 冷 cold
- 热 hot
Examples by Level
他不是{喝|hē}茶,就是{喝|hē}水。
He is either drinking tea or drinking water.
我不是{看|kàn}书,就是{看|kàn}电影。
I am either reading or watching a movie.
这儿不是{冷|lěng},就是{热|rè}。
It's either cold here or hot.
他不是{去|qù}学校,就是{去|qù}家。
He is either going to school or going home.
周末我不是{打|dǎ}球,就是{去|qù}公园。
On weekends, I either play ball or go to the park.
她不是{在|zài}做饭,就是{在|zài}洗衣服。
She is either cooking or doing laundry.
这件衣服不是{太|tài}大,就是{太|tài}小。
This piece of clothing is either too big or too small.
他不是{想|xiǎng}睡觉,就是{想|xiǎng}吃东西。
He either wants to sleep or wants to eat.
这个问题不是{太|tài}难,就是{太|tài}简单。
This question is either too hard or too simple.
他不是{在|zài}忙工作,就是{在|zài}忙学习。
He is either busy with work or busy with study.
这辆车不是{太|tài}旧,就是{太|tài}贵。
This car is either too old or too expensive.
我们不是{坐|zuò}火车,就是{坐|zuò}飞机。
We are either taking the train or taking the plane.
这种现象不是{偶然|ǒurán}的,就是{必然|bìrán}的。
This phenomenon is either accidental or inevitable.
他不是{在|zài}逃避问题,就是{在|zài}解决问题。
He is either avoiding the problem or solving it.
这个决定不是{为了|wèile}钱,就是{为了|wèile}名。
This decision is either for money or for fame.
他不是{在|zài}进步,就是{在|zài}退步。
He is either progressing or regressing.
这种策略不是{激进|jījìn}的,就是{保守|bǎoshǒu}的。
This strategy is either radical or conservative.
他不是{在|zài}追求卓越,就是{在|zài}安于现状。
He is either pursuing excellence or settling for the status quo.
这个观点不是{片面|piànmiàn}的,就是{极端|jíduān}的。
This viewpoint is either one-sided or extreme.
他不是{在|zài}创造历史,就是{在|zài}被历史遗忘。
He is either making history or being forgotten by it.
人生不是{一场|yīchǎng}修行,就是{一场|yīchǎng}博弈。
Life is either a spiritual practice or a game of strategy.
这种艺术不是{深刻|shēnkè}的,就是{肤浅|fūqiǎn}的。
This art is either profound or superficial.
他不是{在|zài}引领时代,就是{在|zài}被时代抛弃。
He is either leading the era or being left behind by it.
选择不是{为了|wèile}自由,就是{为了|wèile}束缚。
The choice is either for freedom or for bondage.
Easily Confused
Both mean 'or'.
Both used in questions.
Very similar to '不是...就是...'.
Common Mistakes
不是A或者B
不是A就是B
他不是去,就是不去
他不是去,就是不去
不是A,不是B
不是A,就是B
不是A,或者B
不是A,就是B
他不是在学习,或者在睡觉
他不是在学习,就是在睡觉
不是去学校,或者去图书馆
不是去学校,就是去图书馆
不是太冷,或者太热
不是太冷,就是太热
不是他去,或者我去
不是他去,就是我去
不是为了钱,或者为了名
不是为了钱,就是为了名
不是太难,或者太简单
不是太难,就是太简单
不是激进,或者保守
不是激进,就是保守
不是追求卓越,或者安于现状
不是追求卓越,就是安于现状
不是片面,或者极端
不是片面,就是极端
Sentence Patterns
他不是___,就是___。
这儿不是___,就是___。
我不是___,就是___。
他不是___,就是___。
Real World Usage
你不是在忙,就是没看手机。
生活不是为了工作,就是为了享受。
这个职位不是需要经验,就是需要技术。
我们不是坐飞机,就是坐火车。
我不是想吃面,就是想吃米饭。
他不是在睡觉,就是在看书。
Keep it simple
Don't over-complicate
Use it for guessing
Natural flow
Smart Tips
Use this structure to sound more like a native speaker.
Use this to emphasize the lack of other options.
Use this to show you have narrowed down your choice.
Use this to present a logical argument.
Pronunciation
Tone of '不是'
The '不' in '不是' changes tone depending on the following word, but '不是' is usually 'bú shì'.
Binary choice
不是A↗,就是B↘
Rising on A to show uncertainty, falling on B to show conclusion.
Memorize It
Mnemonic
Think of a seesaw: '不是' pushes one side down, '就是' pushes the other side up.
Visual Association
Imagine a fork in the road. The left path is '不是', the right path is '就是'. You must pick one.
Rhyme
不是A,就是B,选一个,别犹豫。
Story
Xiao Wang is hungry. He stands in front of the fridge. He thinks: 'I am not eating apples, I am eating oranges.' He says: '我不是吃苹果,就是吃橘子。'
Word Web
Challenge
For the next 5 minutes, describe everything you do as a choice between two things using this structure.
Cultural Notes
Very common in daily speech to express frustration or limited options.
Used similarly, often with a slightly softer tone.
Often mixed with English particles.
Derived from the logical negation of 'is' (是).
Conversation Starters
你周末通常做什么?
你喜欢喝什么?
你觉得这个工作怎么样?
你对这个社会现象怎么看?
Journal Prompts
Common Mistakes
Test Yourself
他___喝茶,___喝咖啡。
Which sentence is correct?
Find and fix the mistake:
他不是去学校,或者去图书馆。
Arrange the words in the correct order:
All words placed
Click words above to build the sentence
He is either working or sleeping.
Answer starts with: 他不是...
A: 他今天怎么没来? B: 他___。
Use '不是...就是...' with '太冷' and '太热'.
Which is a valid '不是...就是...' sentence?
Score: /8
Practice Exercises
8 exercises他___喝茶,___喝咖啡。
Which sentence is correct?
Find and fix the mistake:
他不是去学校,或者去图书馆。
不是 / 他 / 喝茶 / 就是 / 喝咖啡
He is either working or sleeping.
A: 他今天怎么没来? B: 他___。
Use '不是...就是...' with '太冷' and '太热'.
Which is a valid '不是...就是...' sentence?
Score: /8
Practice Bank
10 exercises{不是|bùshì}{你|nǐ},___ {他|tā}。
Choose the correct sentence for 'He is either in Shanghai or Beijing.'
Fix: {她|tā}{不是|bùshì}{喝|hē}{茶|chá},{或者|huòzhě}{喝|hē}{咖啡|kāfēi}。
{星期二|Xīngqī’èr} / {不是|bùshì} / {星期一|Xīngqīyī} / {就是|jiùshì}
Translate into Chinese.
___ {今天|jīntiān}{就是|jiùshì}{明天|míngtiān}。
Fix: {你|nǐ}{不是|bùshì}{吃|chī}{面|miàn},{还是|háishì}{吃|chī}{米饭|mǐfàn}。
Choose the sentence for 'Either I didn't go, or you didn't see me.'
Match: 'If not A, then it is B (Binary choice statement)'
{休息|xiūxi} / {工作|gōngzuò} / {就是|jiùshì} / {不是|bùshì} / {我|wǒ} / {明天|míngtiān}
Score: /10
FAQ (8)
No, it is strictly for two options. For more, use '或者'.
It is neutral and used in both spoken and written Chinese.
Yes, e.g., '他不是不去,就是不想去'.
'要么' is often for future choices or commands.
Yes, if the subject is clear from context.
Extremely common.
You will be understood, but it sounds less definitive.
Yes, '这件衣服不是太大,就是太小'.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
o... o...
Chinese '不是...就是...' is more emphatic.
soit... soit...
French structure is more formal.
entweder... oder...
German requires specific word order changes.
ka... ka...
Chinese uses a verb-based structure.
imma... aw...
Arabic structure is more flexible.
非...即...
This is for formal writing only.
Learning Path
Prerequisites
Related Grammar Rules
Advanced Causality: So... That (以致, 致使, 从而)
Overview Mastering advanced causal connectors is a hallmark of the C2 level, allowing you to articulate complex cause-a...
Doing two things at once (一边...一边)
Overview In Chinese, expressing two actions occurring simultaneously is a fundamental aspect of clear communication. The...
Using `虽然...但是` (suīrán...dànshì) to Say "Although... But..."
Overview The Chinese conjunction pair `虽然...但是` (`suīrán...dànshì`) is a fundamental structure for expressing contra...
Casual 'If' in Chinese: Using 要是 (yàoshi)
Overview The ability to discuss conditions—"if this, then that"—is fundamental to any language. In Chinese, the concept...
As Soon As... Then... (一...就...)
Overview The structure **`一...就...` (yī...jiù...)** is one of the most fundamental and high-frequency patterns in Man...