就 (jiù) vs 才 (cái) in Mandarin: Early vs Late
By Michael McGettrick and Wee Khang LinUpdated 12 October 2026
(jiù) and (cái) both sit straight before the verb, and neither one measures the clock. They measure the gap between what happened and what the speaker expected. (jiù) says sooner or easier; (cái) says later or harder.
Quick check
Three quick questions on what you have just read. The full practice is further down.
Pick the right one
0/3The English in brackets says how the speaker feels. Tap the sentence that says it.
He came at six. (earlier than we expected)
He came at nine. (later than we expected)
I only found out yesterday. (I should have known sooner)
The whole system on one screen
The colours stay the same all page long:
| Use | Hanzi | Pinyin | English |
|---|---|---|---|
| Early | 。 | Tā liù diǎn jiù lái le | He was here by six |
| Late | 。 | Tā jiǔ diǎn cái lái | He didn't come until nine |
| Little | | sān tiān jiù zuò wán le | done in just three days |
| A lot | | sān tiān cái zuò wán | took a whole three days |
| Only, one | 。 | Jiù tā yí ge rén zhīdào | Only he knows |
| Only, little | 。 | Tā cái shí suì | He's only ten |
Both go in the adverb slot: after the subject and the time word, right before the verb.
The axis is expectation, not the clock
Same person, same hour, opposite sentences:
。(Tā liù diǎn jiù lái le.) - He was here by six: earlier than we thought.。(Tā liù diǎn cái lái.) - He didn't turn up until six: later than we thought.
Six o'clock is early for a party and late for a school run. English chooses between "by six" and "not until six"; Mandarin chooses between (jiù) and (cái).
- 他六点就来了tā liù diǎn jiù lái le: by six
- 他六点来了tā liù diǎn lái le: at six, no comment
- 他六点才来tā liù diǎn cái lái: not until six
So before choosing, never ask "is six early?". Ask: compared with what the speaker expected, did it happen sooner or later?
就 (jiù): it took less than you thought
(jiù) says it came without the wait or the fuss you might have assumed. About something that has happened, the sentence usually ends in (le):
| Hanzi | Pinyin | English |
|---|---|---|
。 | Wǒ qī diǎn jiù chī wán le. | I'd finished eating by seven |
。 | Tā shíbā suì jiù kāishǐ gōngzuò le. | He started work at eighteen |
。 | Wǒ xiànzài jiù qù. | I'm going right now |
。 | Wǒ chī wán fàn jiù zǒu. | I'll leave straight after eating |
The last two are not about the past, so there is no (le). They show (jiù) as "straight away, with no gap". Its best-known frame is (yī)… (jiù), as soon as: (wǒ yí kàn jiù zhīdào le), one look and I knew. That has its own page: 一…就.
才 (cái): it took more than you thought
(cái) says something finally happened, and the speaker noticed how long it took. English usually needs "not until" or "only… then":
| Hanzi | Pinyin | English |
|---|---|---|
。 | Tā jiǔ diǎn cái lái. | He didn't come until nine |
。 | Wǒ zuótiān cái zhīdào. | I only found out yesterday |
。 | Tā sānshí suì cái jiéhūn. | She didn't marry until thirty |
，。 | Wǒ děng le sān ge xiǎoshí, tā cái lái. | I waited three hours before he came |
English needs a "not" for this; Mandarin does not, because (cái) already carries the lateness. It also carries an opinion: (tā sānshí suì cái jiéhūn) says thirty was late, in the speaker's eyes. For the plain fact, leave (cái) out: (tā sānshí suì jiéhūn).
才 (cái) refuses a sentence-final 了 (le)
A (jiù) sentence about the past usually ends in (le). A (cái) sentence that means "not until" normally does not:
| Hanzi | Pinyin | Verdict |
|---|---|---|
。 | Tā liù diǎn jiù lái le. | right: early, with |
。 | Tā jiǔ diǎn cái lái. | right: late, no final |
。 | Tā jiǔ diǎn cái lái le. | the classic learner error |
The usual explanation: a final (le) announces that something has now come about, while (cái) dwells on how long it took. Keep the two apart and you will not go wrong.
A (le) straight after a verb is a different word in a different place, and it is fine. In ， (wǒ děng le sān ge xiǎoshí, tā cái lái) the belongs to (děng), in the first half.
The quantity reading: the same three days, twice
Put an amount before the adverb and the same number gets opposite verdicts:
| Hanzi | Pinyin | English |
|---|---|---|
。 | Wǒ sān tiān jiù zuò wán le. | I got it done in just three days |
。 | Wǒ sān tiān cái zuò wán. | It took me a whole three days |
。 | Zhè běn shū shí kuài qián jiù mǎi dào le. | I got this book for just ten yuan |
。 | Zhè běn shū yìbǎi kuài cái mǎi dào. | It took a whole hundred yuan |
(jiù) says the amount was small enough to be a pleasant surprise; (cái) says it was big enough to notice. Whether three days is a lot is entirely the speaker's call, and the adverb is how they make it.
The two 'onlys'
Both words can come out as "only" in English, but they do different jobs:
| Word | Job | Hanzi | English |
|---|---|---|---|
| (jiù) | narrows it down to one | 。 | Only he knows |
| (jiù) | just this, nothing else | 。 | I just want this one |
| (cái) | the amount is small | 。 | He's only ten |
| (cái) | the amount is small | 。 | I only slept three hours |
Watch where the number sits. Before (cái), it reads as a lot: (sān tiān cái zuò wán), a whole three days. After (cái), it reads as a little: (cái sān tiān), only three days.
(cái) + amount is not always a complaint. (cái wǔ kuài qián), only five yuan, is good news about a price.
Register: what these two do to your tone
Neither word is formal or informal, but (cái) has an edge when the subject is a person in the room:
| Hanzi | Pinyin | How it lands |
|---|---|---|
。 | Nǐ lái le. | You're here: neutral, welcoming |
？ | Nǐ xiànzài cái lái? | You're only getting here now? A dig |
。 | Zhè jiā diàn qùnián cái kāi. | This shop only opened last year: fact |
About things, (cái) is just information. About the listener, assume the complaint is audible and use it on purpose. (jiù) is safe almost everywhere.
Mistakes English speakers make
| Wrong | Right | Why |
|---|---|---|
。 | 。 | (cái) for "not until": no final |
。 | 。 | the adverb goes before the verb |
The adverb (jiù) is on the AQA GCSE Chinese specification at Foundation and Higher tier, and … (yī… jiù) at Higher.
What to do next
- Do the drill below.
- Say what time you got up today, twice: once with
(jiù) and(le), once with(cái). - Then read as long as and only if:
(zhǐyào)…(jiù) and(zhǐyǒu)…(cái), where the same pair splits easy conditions from hard ones.