Question 1

What does the particle 才 (cái) do in this sentence?

Accepted Answer

It marks “not until/only then,” implying the action happened later than expected. So 很晚才 suggests “not until very late (did we) finish.”

Question 2

Why is it 很晚才 and not 才很晚?

Accepted Answer

才 must come directly before the verb phrase it modifies. Here it modifies 做完工作, and 很晚 is a time/degree adverbial. So the pattern is: [time/degree] + 才 + [VP], i.e., 很晚才做完工作, not 才很晚做完工作.

Question 3

Is 很 necessary before 晚? Can I say 我们今天晚才做完工作?

Accepted Answer

- 很晚才 is the natural collocation.
- 晚才 alone sounds awkward.
- If you drop 很 and also drop 才, 我们今天晚做完工作 is possible but less idiomatic than adding 很 or 才.
- Note: 我们今天才做完工作 changes the meaning to “we only finished today (not earlier),” focusing on “today,” not “late at night.”

Question 4

What’s the difference between saying 我们今天很晚做完工作 and 我们今天很晚才做完工作?

Accepted Answer

- 很晚做完: simply states “finished very late.”
- 很晚才做完: adds the “not until” nuance—later than expected, more emphatic/natural in this context.

Question 5

Do I need 了 (le) after 做完?

Accepted Answer

Not required. 完 already encodes completion. Options:
- With an object: 我们今天很晚才做完工作 (very common).
- Without the object, many speakers add 了: 我们今天很晚才做完了 (“only then did we finish [it]”).
- With 把 for emphasis (and often with 了): 我们今天很晚才把工作做完了.

Question 6

What exactly does 做完 mean here? How is it different from 完成?

Accepted Answer

- 做完 (zuòwán) = “do + finish” (verb + result complement), very common and colloquial.
- 完成 (wánchéng) = “complete/finish,” a single verb, a bit more formal.
Examples:
- 我们今天很晚才做完工作。
- 我们今天很晚才完成工作。 (slightly more formal; both are fine)

Question 7

Why not use 把: 我们今天很晚才把工作做完?

Accepted Answer

You can. 把 front-loads the object for emphasis on the result affecting it:
- 我们今天很晚才把工作做完（了）。
Both with or without 把 are natural; 把 puts more spotlight on “the work.”

Question 8

Where can I place 今天 and the subject? Is 今天我们… okay?

Accepted Answer

Yes. Both are fine:
- 我们今天很晚才…
- 今天我们很晚才…
Chinese commonly puts time expressions early in the sentence.

Question 9

What’s the difference between 工作, 上班, 下班, and 加班 here?

Accepted Answer

- 工作 (gōngzuò): the work/tasks themselves.
- 上班 (shàngbān): be at work/work shifts.
- 下班 (xiàbān): get off work.
- 加班 (jiābān): work overtime.
Alternative sentences:
- 我们今天很晚才下班。 (We got off work late.)
- 我们今天加班到很晚。 (We worked overtime until late.)

Question 10

How does 才 compare to 就 (jiù)?

Accepted Answer

They’re opposites in timing/expectation:
- 才 = later than expected: 我们今天十点才做完工作。 (not until 10)
- 就 = earlier/sooner/easier than expected: 我们今天七点就做完工作了。 (as early as 7)

Question 11

How do I say “We hadn’t finished even by late at night”?

Accepted Answer

Use negation with 没/没有 instead of 才:
- 到很晚我们都没做完工作。
- 一直到很晚也没做完工作。
(Using 才 with negation is generally not how you express this idea.)

Question 12

Can I specify a concrete time with 才?

Accepted Answer

Yes:
- 我们今天十点才做完工作。 (not until 10)
- With “until”: 我们今天到十点才做完工作。

Question 13

Any pronunciation tips (tone sandhi) for 很晚?

Accepted Answer

Yes. 很 (hěn) + 晚 (wǎn) is 3rd tone + 3rd tone, so 很 changes to rising tone in speech: pronounce it like hén wǎn, though it’s still written hěn wǎn in pinyin.

Question 14

Can I omit 工作?

Accepted Answer

If context makes the object clear, yes:
- 我们今天很晚才做完。 or …才做完了。
If you want to keep it explicit, use 工作 or the 把 pattern: 把工作做完（了）.

Question 15

Can I topicalize 工作?

Accepted Answer

Yes, for emphasis on the object:
- 工作我们今天很晚才做完。
This is a common topic–comment structure in Chinese.

wǒmen jīntiān hěn wǎn cái zuòwán gōngzuò.

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