才
Reach for this when something happened LATER, SLOWER, or under more restrictive conditions than you'd expect. 才 ('only then, not until') marks an action as late or hard-won. 'He didn't come home until 9pm,' 'Only then did I understand,' 'You have to study before you'll get it' — all 才 territory. The flip side of 就 ('right away, easily'). Neutral register, used constantly in everyday Chinese.
Structure
[CONDITION / TIME], Subject + 才 + Verb
cái
How to Think About It
才 is the 'late/hard' marker; 就 is the 'soon/easy' marker. Same sentence, swap one for the other and the speaker's whole attitude flips. 他八点就回家了 = 'He got home as early as 8pm.' 他八点才回家 = 'He didn't get home until 8pm.' No 了 typically follows 才 — the late-ness already implies the action just happened or is being noted.
Examples
他晚上十点才回家。
Tā wǎnshàng shí diǎn cái huíjiā.
He didn't get home until ten at night.
学了五年中文，我才能看懂这本书。
Xué le wǔ nián Zhōngwén, wǒ cái néng kàn dǒng zhè běn shū.
Only after five years of studying Chinese am I able to understand this book.
知道了原因，你才不会再生气。
Zhīdào le yuányīn, nǐ cái bù huì zài shēngqì.
Only once you know the reason will you stop being angry.
他才四十二岁。
Tā cái sìshí'èr suì.
He's only forty-two.
这部电影才上映三天，票房就破亿了。
Zhè bù diànyǐng cái shàngyìng sān tiān, piàofáng jiù pò yì le.
The movie has only been out for three days, and box office already crossed 100 million.
我们才认识一个月。
Wǒmen cái rènshi yí ge yuè.
We've only known each other for a month.
Common Mistake
Learners add 了 after the 才 verb because the action is in the past. With 才, the 了 usually disappears — the 'only just' meaning already does the job, and adding 了 makes it sound off.
他晚上九点才回家了。
他晚上九点才回家。
Don't Confuse With
就
Opposite vibe — 'as early as / right away / easily.' Same slot, opposite meaning. Pick 才 for late/hard, 就 for early/easy.
只
Means 'only' in quantity ('only three apples'). 才 is 'only' in time or condition ('only after...').
刚刚
'Just now' — neutral on whether it was late. 才 always carries the 'finally / not until' editorial tone.
只 + number
只 = neutral 'only,' just states the count. 才 = 'only — and that's lower than expected,' adds surprise or regret. 我只有十块钱 is neutral; 我才有十块钱 sounds disappointed.
才 (not until)
Same character, different position and meaning. 才 BEFORE a number means 'only that much'; 才 AFTER a time means 'not until then.' 他才来 (only he came) vs 他才来 (he just now came) — position and context distinguish them.
Practice
Fill in: 他晚上十一点____回家。
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才
Fill in: 我学了三年，____能说一点中文。
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才
Arrange: 才 / 我 / 看完 / 这本书 / 现在
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我现在才看完这本书。
Translate to Chinese: I didn't understand until he explained it.
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他解释了，我才明白。
Write a sentence with 才 about something that took longer than expected.
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我等了一个小时，他才来。
他 ___ 四十二岁。
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才
这本书很薄，___ 一百页。
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才
Arrange: 五块钱 / 才 / 这杯咖啡
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这杯咖啡才五块钱。
She's only twenty-five years old.
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她才二十五岁。
Use 才 + number to express that something is smaller or younger than expected.
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我儿子才三岁，已经会自己穿衣服了。
Hear It in Real Episodes
This pattern appears in 3 Fluentide episodes. Press play to hear the sentence:
晚上九点才回家。
They don't go home until nine at night.
China Urges Workers to Relax After WorkElementary
这个时候，你才明白。
At this point, you finally understand.
AI Chatbot Pretends to Be a BoyfriendElementary
很多学生说因为张雪峰才去了好大学。
Many students said they got into good universities because of Zhang Xuefeng.
Education Influencer Zhang Xuefeng DiesElementary
Related Grammar Patterns
Acquire by listening
Hear 才 in real Chinese, not in a textbook.
Fluentide picks the next news episode at your level, so this pattern shows up again and again in real context. The transcript marks it, the audio drills it. Free to start.