English lets a time word drift to the end of the sentence: "I'm going tomorrow," "The meeting starts at eight." This is the habit you must break, because Chinese does the opposite: a time-when word sits before the verb, either right after the subject (我明天去) or, for emphasis, before the whole clause (明天我去). Putting it at the end — 我去明天 — is one of the most instantly recognisable beginner errors. There's a second twist that trips learners up: how long something lasts (duration) behaves completely differently and comes after the verb. This page is about the "when," and it fixes the placement once and for all.
The two legal slots — both before the verb
A point-in-time expression (今天, 明天, 昨天, 三点, 每天早上, 明年…) has exactly two homes, and both precede the verb. The default is right after the subject. Move it in front of the subject and you topicalise the time — you foreground "as for tomorrow…". The grammar is identical; only the emphasis shifts.
| Position | Example | Nuance |
|---|---|---|
| After the subject (default) | 我明天去。 | neutral |
| Before the subject (topic) | 明天我去。 | foregrounds the time |
| ❌ After the verb | 我去明天。 | ungrammatical (English calque) |
我明天去。
wǒ míngtiān qù
I'm going tomorrow. — default slot, right after the subject.
明天我去。
míngtiān wǒ qù
Tomorrow, I'll go. — time fronted for emphasis; same grammar.
他昨天来了。
tā zuótiān lái le
He came yesterday. — 昨天 before the verb 来.
我们下午三点开会。
wǒmen xiàwǔ sān diǎn kāihuì
We have a meeting at 3 p.m. — a clock time still sits before the verb.
Time expressions combine cleanly with other pre-verbal slots. When a place phrase joins in, the order is time before place, both still ahead of the verb — the same sequence laid out in the canonical adverbial order.
我们晚上七点在餐厅见。
wǒmen wǎnshang qī diǎn zài cāntīng jiàn
Verb." />
我每天早上喝咖啡。
wǒ měitiān zǎoshang hē kāfēi
I drink coffee every morning. — a recurring time, before the verb.
你什么时候有空？
nǐ shénme shíhou yǒu kòng
When are you free? — even the question word 什么时候 sits before the verb.
明年我想去日本旅游。
míngnián wǒ xiǎng qù Rìběn lǚyóu
Next year I want to travel to Japan. — time fronted before the subject.
Time-WHEN vs. duration (how long)
Here's the split that surprises everyone. A point in time (when something happens) goes before the verb. A duration (how long it lasts) goes after the verb, typically between the verb and its object. They answer different questions — 什么时候 (when) vs 多长时间 (how long) — and they land on opposite sides of the verb.
| Type | Question | Position | Example |
|---|---|---|---|
| Time-when (point) | 什么时候? | before the verb | 我三点来。 |
| Duration (how long) | 多长时间? | after the verb | 我等了三天。 |
我学了两年中文。
wǒ xué le liǎng nián zhōngwén
I studied Chinese for two years. — duration (两年) follows the verb.
我等了半个小时。
wǒ děng le bàn ge xiǎoshí
I waited half an hour. — how-long comes after the verb.
Notice 两年, not 二年 — before a measure-like unit, "two" is 两. The full mechanics of duration phrases live on their own page; here just hold onto the contrast: when → before the verb, how long → after the verb.
Common Mistakes
1. Sending the time word to the end (English calque). The signature beginner error.
❌ 我去商店明天。
Incorrect — the time word cannot trail the sentence.
✅ 我明天去商店。
wǒ míngtiān qù shāngdiàn
I'm going to the store tomorrow. — time before the verb.
2. Slipping the time word between verb and object. It belongs before the verb, not inside the verb phrase.
❌ 我去明天商店。
Incorrect — 明天 splits the verb from its object; move it before 去.
✅ 我明天去商店。
wǒ míngtiān qù shāngdiàn
Tomorrow I'm going to the store. — time precedes the whole verb phrase.
3. Putting a clock time after the verb. Like all time-when words, 八点 goes in front.
❌ 会议开始八点。
Incorrect — the clock time must precede the verb.
✅ 会议八点开始。
huìyì bā diǎn kāishǐ
The meeting starts at eight. — 八点 before 开始.
4. Treating duration like time-when and fronting it. How-long follows the verb, not precedes it.
❌ 我两年学了中文。
Incorrect — duration follows the verb: 学了两年中文.
✅ 我学了两年中文。
wǒ xué le liǎng nián zhōngwén
I studied Chinese for two years. — duration after the verb.
Key Takeaways
- Time-when words go before the verb — either after the subject (我明天去, default) or before it (明天我去, emphasis).
- Never place a time-when word at the end of the sentence — 我去明天 is the classic English calque error.
- With a place phrase, the order is time before place, both ahead of the verb.
- Duration (how long) is different: it comes after the verb — 学了两年, 等了半个小时.
- Use 两, not 二, before units like 年: 两年, not 二年. For reading clock times, see telling the time.
Now practice Chinese
Reading grammar gets you part of the way. The exercises are where it sticks — free, no signup needed.
Start learning Chinese→Related Topics
- The Canonical Adverbial OrderHSK 3 — Pre-verbal modifiers follow one fixed sequence: Subject > Time > 也/都 > Place (在…) > Manner/with-whom > Verb. 我明天在家跟朋友一起看电影 — everything stacks BEFORE the verb.
- Where the 在… Place Phrase GoesHSK 2 — A location where an action happens is a 在… phrase placed BEFORE the verb (我在家吃饭 'I eat at home'); only result-location verbs let 在… follow the verb (住在北京, 放在桌子上).
- Placing Duration (How Long)HSK 3 — Duration — how long an action lasts — FOLLOWS the verb as a complement: 我等了三个小时 'I waited three hours', 他睡了十个小时 'he slept ten hours'. With an object you must copy the verb (学中文学了三年) or wedge the duration in front of the object with 的 (学了三年的中文), because duration and object both compete for the post-verb slot.
- Telling Time (点 / 分 / 刻 / 半)HSK 1 — Clock time is built from 点 (the hour), 分 (minutes), 刻 (quarter-hours), and 半 (half): 三点半 is 3:30, 三点一刻 is 3:15, 差五分八点 is 7:55. Watch the one trap — 'two o'clock' is 两点, not 二点.