Ask an English speaker any polar question and they have one pair of words ready — yes and no — that answers all of them. "Are you going?" "Do you have change?" "Can you swim?" — all take yes or no, no matter what the verb was. Chinese has no such universal pair. Here the "yes/no" lives inside the verb: to answer, you find the verb the question hinges on and hand it back — bare for "yes," negated for "no." This is one of the most reliable early stumbles for English speakers, because the instinct to grab a single all-purpose word is so strong, and the nearest-looking candidate, 是 (shì), is a false friend — it means "to be," not "yes." This page shows the echo mechanic and where 是 and 对 really fit.
The mechanic: hand the verb back
The question hands you a verb; your answer is that same verb, plain (yes) or with 不/没 (no). Because the affirmative and negative are built from the verb itself, there's a different "yes" and "no" for every verb.
| Question | "Yes" | "No" |
|---|---|---|
| 你去吗？(go) | 去 (qù) | 不去 (bú qù) |
| 你是学生吗？(be) | 是 (shì) | 不是 (bú shì) |
| 你有车吗？(have) | 有 (yǒu) | 没有 (méiyǒu) |
| 你会开车吗？(can) | 会 (huì) | 不会 (bú huì) |
| 你喜欢吗？(like) | 喜欢 (xǐhuan) | 不喜欢 (bù xǐhuan) |
| 对不对？(correct) | 对 (duì) | 不对 (bú duì) |
| 你吃了吗？(done?) | 吃了 (chī le) | 还没 (hái méi) |
你去不去？去，我跟你一起去。
nǐ qù bu qù? qù, wǒ gēn nǐ yìqǐ qù
Are you going? — Yes, I'll go with you. (informal) — the 'yes' is the echoed verb 去, not a separate word.
你想喝咖啡吗？想，帮我点一杯。
nǐ xiǎng hē kāfēi ma? xiǎng, bāng wǒ diǎn yì bēi
Do you want coffee? — Yes, order me one. (informal) — echo 想 for 'yes'.
Why 是 is not the universal "yes"
The trap is that 是 looks like "yes." It isn't — it's the verb "to be," and it only answers questions whose verb is 是. Ask 你是老师吗？ ("are you a teacher?") and 是 is correct, because 是 is the very verb in play. But ask 你去吗？ and the verb is 去, so the answer is 去 — answering 是 here is like replying "I am" to "do you go?": grammatically stranded.
你是这里的老师吗？是，我是。
nǐ shì zhèlǐ de lǎoshī ma? shì, wǒ shì
Are you the teacher here? — Yes, I am. (neutral) — 是 fits because 是 is the question's own verb.
你会游泳吗？会一点儿，不太好。
nǐ huì yóuyǒng ma? huì yìdiǎnr, bú tài hǎo
Can you swim? — A little, not very well. (informal) — echo the modal 会, never 是.
有 questions negate with 没, not 不
One verb breaks the 不 pattern. The negative of 有 ("have / there is") is always 没有, never 不有. So "have you got…?" answers with 有 or 没有. Choosing between 没 and 不 more broadly is its own topic — see 没有 vs 不是.
你有零钱吗？没有，我只有手机支付。
nǐ yǒu língqián ma? méiyǒu, wǒ zhǐ yǒu shǒujī zhīfù
Do you have change? — No, I've only got mobile pay. (informal) — 有 negates to 没有.
"Have you done X?" answers with 了 or 还没
A completed-action question (…了吗？) is answered by echoing the verb with 了 for "yes" and 还没 ("not yet") for "no" — not 不. Saying 不 for an uncompleted action is a common error, because the issue is timing, not refusal.
你吃饭了吗？还没呢，正准备去吃。
nǐ chīfàn le ma? hái méi ne, zhèng zhǔnbèi qù chī
Have you eaten? — Not yet, I'm just about to. (informal) — completed-action 'no' is 还没, not 不.
作业写完了吗？写完了。
zuòyè xiě wán le ma? xiě wán le
Have you finished the homework? — Yes, done. (neutral) — echo 写完 + 了 for 'yes'.
对 and 嗯: agreement, not answers
Two words do work as broad affirmatives, but with limits. 对 ("correct") answers questions about whether something is right or true — 对不对？, 是这样吗？ — and works as agreement, but it's not the natural reply to an action question (答 对 to 你去吗？is odd). 嗯 (èn, "mm") is a casual spoken "yeah" that can acknowledge almost anything, but it's a soft backchannel, not a crisp answer — for the full toolkit of listener signals, see backchanneling.
这样写对吗？对，没错。
zhèyàng xiě duì ma? duì, méi cuò
Is it written correctly like this? — Right, that's correct. (neutral) — 对 answers a correctness question.
你明天来吗？嗯，来。
nǐ míngtiān lái ma? èn, lái
Are you coming tomorrow? — Mm, yeah. (informal) — casual 嗯 softens, but the real answer is the echoed 来.
Common Mistakes
1. Answering an action question with 是. 是 is "to be"; it can't answer 你去吗？. Echo the verb.
❌ 你去吗？是。
Wrong — 去 is the verb, not 是; answering 是 is stranded ('I am' to 'do you go?').
✅ 你去吗？去。
nǐ qù ma? qù
Are you going? — Yes (going). — echo 去.
2. Using 对 as a catch-all 'yes'. English speakers reach for 对 the way they reach for "yes." It answers correctness, not every question.
❌ 你会说中文吗？对。
Off — this asks about ability; echo the modal 会, not 对.
✅ 你会说中文吗？会。
nǐ huì shuō Zhōngwén ma? huì
Can you speak Chinese? — Yes (I can). — echo 会.
3. Negating 有 with 不. The negative of 有 is 没有, full stop.
❌ 你有时间吗？不有。
Ungrammatical — 有 never takes 不; the negative is 没有.
✅ 你有时间吗？没有。
nǐ yǒu shíjiān ma? méiyǒu
Do you have time? — No. — 有 → 没有.
4. Saying 不 for 'not yet' on a completed-action question. Use 还没; 不 wrongly implies refusal, not incompleteness.
❌ 你吃了吗？不。
Wrong — a 了吗 question asks if it's done; 'not yet' is 还没, not the refusal 不.
✅ 你吃了吗？还没。
nǐ chī le ma? hái méi
Have you eaten? — Not yet. — 还没 for uncompleted action.
Key Takeaways
- Chinese has no all-purpose 'yes/no' — you answer by echoing the verb (bare = yes) or negating it (不/没 = no).
- 是 means "to be", so it only answers 是-questions (你是…吗？), never every yes/no question.
- 有 negates to 没有, never 不有; completed-action questions (…了吗？) answer with 了 or 还没, not 不.
- 对 answers correctness questions and works as agreement; 嗯 is a soft spoken "yeah" — neither is a universal reply to a verb question.
- The echo logic is the same one behind the A-not-A question: find the verb, hand it back.
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- A-not-A Questions (是不是, 去不去)HSK 1 — A second neutral way to ask yes/no: juxtapose the positive and negative of the verb or adjective — 去不去, 好不好, 是不是. The middle 不 is toneless, 有 uses 没 (有没有), and you never add 吗.
- 没有 vs 不是 — Two Ways to Say 'No/Not'HSK 2 — English 'no/not' is one word; Chinese makes you match the negator to the verb you're denying. 没有 (méiyǒu) denies HAVING, EXISTING, or HAPPENING — 'don't have / there isn't / didn't.' 不是 (búshì) denies BEING or IDENTITY — 'is not / it's not the case that.' The cleanest test is the echo answer: 有没有 is answered 没有, 是不是 is answered 不是.
- Backchanneling: 嗯/对/是啊HSK 2 — To show you're listening, Chinese speakers thread minimal responses through the other person's talk: 嗯 (mm-hm), 对 (right), 是啊 (that's so), 是吗？(oh yeah?), 真的吗？(really?), 然后呢？(and then?). These keep a speaker going; silence while listening reads as cold or disengaged — especially on the phone.