没(有) (méi yǒu): Negating 有 and Completed Action | Chinese (Mandarin) Grammar

Mandarin has two words for "not," and 没 (méi) is the one English speakers most often get wrong. Its job is not vague: 没 negates 有 (to have / to exist), and it negates actions as not having happened / not yet completed. Put those together and a single idea emerges — 没 is the negator of realization. It cancels the existence of a thing (没有钱, "have no money") or the occurrence of an event (我没吃, "I didn't eat"). Its partner 不 (bù) handles habits, intentions, and qualities; sorting the two is covered on the 不 or 没 decision page. This page is 没 in depth.

没 is the only negation for 有

Almost every Chinese verb can be negated by 不. 有 is the great exception: it is negated only by 没, producing 没有 (méiyǒu). The form 不有 does not exist — it is one of the few truly exceptionless facts in the language. Whenever 有 means "have," negate it with 没有:

我没有零钱，你有吗？

wǒ méiyǒu língqián, nǐ yǒu ma?

I don't have any change — do you? (informal)

昨天太忙，我没有时间给你打电话。

zuótiān tài máng, wǒ méiyǒu shíjiān gěi nǐ dǎ diànhuà

Yesterday I was too busy — I didn't have time to call you. (informal)

Before a noun, the 有 stays put: it is 没有钱 (méiyǒu qián), not 没钱 in careful speech. This matters because before a verb, 没 behaves differently (next section). The rule of thumb: noun after → keep 有; verb after → 有 usually drops. For 有 itself — possession, the 有没有 question, the shortening to 没 — see the 有 (possession) page.

没 negates a completed action — and drops the 了

The second job is the one that surprises learners. To say an action didn't happen or hasn't happened yet, you put 没 in front of the verb. Here the 有 is normally left out:

我今天没吃早饭，饿死了。

wǒ jīntiān méi chī zǎofàn, è sǐ le

I didn't eat breakfast today — I'm starving. (informal)

你怎么没告诉我？

nǐ zěnme méi gàosu wǒ?

Why didn't you tell me? (informal)

他还没回消息。

tā hái méi huí xiāoxi

He still hasn't replied to my message. (informal)

Now the crucial mechanics. The affirmative "I ate" is 我吃了 (wǒ chī le), where 了 marks the action as completed. But 没 already means "did not reach completion," so the 了 becomes contradictory and disappears. The negative of 我吃了 is 我没吃 — never 我没吃了.

Affirmative (completed)	Negative (with 没)	English
我吃了 (wǒ chī le)	我没吃 (wǒ méi chī)	I ate → I didn't eat
他来了 (tā lái le)	他没来 (tā méi lái)	he came → he didn't come
我买了 (wǒ mǎi le)	我没买 (wǒ méi mǎi)	I bought → I didn't buy

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The 了 and 没 cancel each other out. 了 says "it happened"; 没 says "it didn't." You can never stack them on the same verb — 没 + verb, no 了. If you catch yourself writing 没…了, delete the 了.

Experience: 过 survives under 没

There is one aspect marker that 没 does not delete: the experiential 过 (guo), which marks "have ever done." Because 过 tracks experience, not completion, it stays. "I've never been to China" keeps its 过:

我从来没去过日本。

wǒ cónglái méi qùguo Rìběn

I've never been to Japan. (neutral)

这部电影我没看过。

zhè bù diànyǐng wǒ méi kànguo

I haven't seen this movie. (informal)

Compare 我没去 ("I didn't go" — one specific time) with 我没去过 ("I've never been" — in my whole life). Dropping the 过 changes the meaning from experience to a single missed occasion. See the experiential 过 page for the full picture.

没 negates change

A quieter third use follows the same logic. When a verb describes a change of state — 变 (biàn, "change"), 好 (recover), 长 (grow) — negating it with 没 means "the change did not occur," i.e. it stayed the same:

这么多年了，他一点都没变。

zhème duō nián le, tā yìdiǎn dōu méi biàn

After all these years, he hasn't changed a bit. (informal)

药吃了三天，感冒还没好。

yào chī le sān tiān, gǎnmào hái méi hǎo

I've taken the medicine for three days and the cold still hasn't gotten better. (informal)

This is the same "the event never became real" meaning — a change is just an event, and 没 is its negator. It all reduces to one insight: 没 negates the arrival of something into reality, whether that something is a possession, an action, an experience, or a change.

Common Mistakes

1. Using 不 with 有. The single most common error for English speakers, because "don't have" feels like 不 + 有. It never is.

❌ 我不有钱。

Incorrect — 有 is negated only by 没, never 不.

✅ 我没有钱。

wǒ méiyǒu qián

I don't have money.

2. Keeping 了 under 没. Since 没 already cancels completion, the 了 must go.

❌ 我没吃了。

Incorrect — 没 already means 'didn't happen', so the 了 is dropped.

✅ 我没吃。

wǒ méi chī

I didn't eat / haven't eaten.

3. Dropping 过 when you mean 'never'. For lifetime experience, the 过 must stay; without it you're only denying one occasion.

❌ 我没去中国。（meaning 'I've never been to China'）

Wrong sense — this only says you didn't go one specific time.

✅ 我没去过中国。

wǒ méi qùguo Zhōngguó

I've never been to China. — 过 marks the lifetime experience.

4. Using 没 to negate the copula 是. 没 is for 有, actions, and change — not for identity. 是 takes 不.

❌ 我没是学生。

Incorrect — 是 is negated by 不, giving 不是, never 没是.

✅ 我不是学生。

wǒ bú shì xuésheng

I'm not a student.

Key Takeaways

没(有) is the only negation for 有: 没有钱, 没有时间 — never 不有.
It negates completed / not-yet actions — 我没吃, 他没来 — and drops the 了 (never 没…了).
Before a noun, keep the 有 (没有钱); before a verb, 有 usually drops (没吃).
Experiential 过 survives under 没: 没去过 = "have never been."
没 also negates change (没变, 还没好). The through-line: 没 denies that something became real.

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