Duration and Frequency in Chinese

Overview

Expressing duration (how long) and frequency (how many times) in Chinese requires careful word order because these expressions follow the verb -- unlike time words (today, tomorrow) which precede it. Duration uses time periods: 学了三年 (studied for three years). Frequency uses 次 (times) or 遍 (complete instances): 去过两次 (been there twice).

At the CEFR B1 level, mastering duration and frequency expressions allows you to describe experiences in detail. The tricky part is handling objects: when a verb has both a duration/frequency expression and an object, special word order rules apply.

The key distinction between 次 (cì) and 遍 (biàn) is that 次 counts occurrences while 遍 counts complete run-throughs (reading a whole book, watching a whole movie).

How It Works

Duration: Verb + Time period

Pattern	Example	Meaning
V + 了 + duration	学了三年	studied for 3 years
V + duration + 的 + N	三年的中文	3 years of Chinese
V + N + V + duration	学中文学了三年	studied Chinese for 3 years

Frequency: Verb + Number + 次/遍

Pattern	Example	Meaning
V + 过 + num + 次	去过两次	been twice
V + num + 遍	看了三遍	read 3 times through

With objects (word order)

Situation	Pattern	Example
Duration, no object	V + duration	等了两个小时
Duration + object	V + Obj + V + duration	学中文学了三年
Duration + object (alt)	V + 了 + duration + 的 + Obj	学了三年的中文
Frequency + object	V + 了 + Obj + num + 次	去了中国两次

Examples in Context

Chinese	Pinyin	English	Note
我学了三年中文。	Wǒ xué le sān nián Zhōngwén.	I studied Chinese for 3 years.	duration + object
等一下。	Děng yíxià.	Wait a moment.	brief duration
我去过中国两次。	Wǒ qù guo Zhōngguó liǎng cì.	I've been to China twice.	frequency
请再说一遍。	Qǐng zài shuō yí biàn.	Please say it again.	one more time through
他睡了八个小时。	Tā shuì le bā gè xiǎoshí.	He slept for 8 hours.	duration
这本书我看了两遍。	Zhè běn shū wǒ kàn le liǎng biàn.	I read this book twice.	complete readings
我们聊了很长时间。	Wǒmen liáo le hěn cháng shíjiān.	We chatted for a long time.	duration
你来过几次？	Nǐ lái guo jǐ cì?	How many times have you been?	question
我每天跑步半个小时。	Wǒ měi tiān pǎo bù bàn gè xiǎoshí.	I run half an hour every day.	habitual duration
他打了我三次电话。	Tā dǎ le wǒ sān cì diànhuà.	He called me 3 times.	frequency + object

Common Mistakes

Placing duration before the verb

• Wrong: 我三年学了中文。(I three-years studied Chinese.)
• Right: 我学了三年中文。(I studied Chinese for three years.)
• Why: Duration expressions follow the verb, not precede it (unlike time-point expressions which do precede verbs).

Confusing 次 and 遍

• Wrong: 这本书我看了三次 when meaning "I read it through three times"
• Right: 这本书我看了三遍 (read it completely three times)
• Why: 遍 means a complete cycle; 次 means an occurrence. For books and movies, 遍 is more precise.

Incorrect object placement with duration

• Wrong: 我学了中文三年。
• Right: 我学了三年中文。or 我学中文学了三年。
• Why: Duration comes between the verb and the object, or the verb is repeated with the duration after the second instance.

Practice Tips

• Practice with personal experiences: 我学了...年中文, 我来过...次中国. Personalize the patterns.
• Master the common phrase 请再说一遍 (please say it again) -- it is invaluable for language learners.
• When the word order feels confusing, try the verb-repeat pattern: 学中文学了三年. It is always safe.

Related Concepts

• Prerequisite: Time Expressions -- understand time-point words before duration