Chinese Time Duration: How Long with 'le'
Grammar Rule in 30 Seconds
To express how long an action lasted, place the duration immediately after the verb and follow it with 'le'.
- Verb + Duration + {了|le}: {我|wǒ}{等|děng}{了|le}{三|sān}{个|gè}{小|xiǎo}{时|shí} (I waited for three hours).
- If there is an object, repeat the verb: {我|wǒ}{学|xué}{了|le}{三|sān}{个|gè}{小|xiǎo}{时|shí}{汉|hàn}{语|yǔ} (I studied Chinese for three hours).
- For negative, use {没|méi} and omit {了|le}: {我|wǒ}{没|méi}{等|děng}{三|sān}{个|gè}{小|xiǎo}{时|shí} (I didn't wait for three hours).
Overview
Mastering duration expressions in Chinese is pivotal for intermediate (B1) learners. Unlike many Indo-European languages that rely on prepositions like "for," Chinese employs a sophisticated system, primarily utilizing the aspect particle 了 (le), to specify how long an action has occurred or a state has existed. This grammatical feature highlights China's aspect-prominent linguistic nature, where verbs are less concerned with exact tense (when an action occurs) and more with its temporal dynamics (how an action unfolds over time: completed, ongoing, habitual, experiential).
At the B1 level, your primary challenge is to differentiate between an action that was completed within a certain duration and an action that has been ongoing for a period and continues into the present. This distinction, often conveyed by the presence or absence of a second, sentence-final 了, profoundly alters the meaning. Misinterpreting this can lead to significant misunderstandings regarding the current status of an activity.
Understanding the precise placement and function of 了 particles is your key to communicating about time with accuracy and nuance.
This lesson will deconstruct these mechanisms, providing clear rules and examples to ensure you can confidently express duration in various contexts. It moves beyond merely observing where 了 appears to explaining why it appears there and what linguistic function it serves, connecting it to the broader logical framework of Chinese grammar.
How This Grammar Works
了 (often referred to as le1 or verbal 了) and 了 (often referred to as le2 or sentence-final 了).了(le1): The Perfective Aspect Marker
了 immediately follows a verb, indicating the completion or realization of the action denoted by that verb. When combined with duration, it means the action was performed for a specific period, and that performance concluded. For instance, in 我跑了两个小时 (wǒ pǎo le liǎng gè xiǎoshí, I ran for two hours), 了 after 跑 confirms the act of running for two hours is finished.了(le2): The Modal Particle (Change of State/Continuation)
了 typically appears at the very end of a sentence. It functions as a modal particle indicating a change of state, the inception of a new situation, or, critically for duration, the continuation of a state or action up to the present moment. When a sentence contains both le1 (after the verb) and le2 (at the end) alongside a duration, it explicitly states that the action or state has continued for the specified duration and is still ongoing or its result is still relevant at the moment of speaking.我跑了两个小时了 (wǒ pǎo le liǎng gè xiǎoshí le, I have been running for two hours) implies you started two hours ago and are still running.了 particles—or the deliberate absence of le2—is the primary mechanism Chinese uses to convey whether a specified duration refers to a completed event or an ongoing one. For stative verbs (e.g., 住 zhù to live, 认识 rènshi to know), le1 can mark the inception of that state for a duration, while le2 then unequivocally signals its continuation up to the present.Formation Pattern
跑 pǎo to run, 睡 shuì to sleep, 等 děng to wait), the structure is straightforward. The duration expression follows the verb and 了 (le1).
Subject + Verb + 了 (le1) + Duration (+ 了 (le2))
Subject | The performer of the action. | 他 (tā) - He | 我 (wǒ) - I |
Verb | An intransitive verb. | 跑 (pǎo) - ran | 等 (děng) - waited |
了 (le1) | Perfective aspect marker. | 了 (le) | 了 (le) |
Duration | The length of time (e.g., 两个小时 liǎng gè xiǎoshí, 半小时 bàn xiǎoshí). | 两个小时 (liǎng gè xiǎoshí) - two hours | 半小时 (bàn xiǎoshí) - half an hour |
(+ 了 (le2)) | Optional sentence-final modal particle (for ongoing actions/states). | (Not present) | 了 (le) |
他睡了十个小时。 (tā shuì le shí gè xiǎoshí.) - He slept for ten hours (and is now awake; the sleeping action is complete).
我等了半小时了。 (wǒ děng le bàn xiǎoshí le.) - I have been waiting for half an hour (and am still waiting).
Subject + Verb + Object + Verb + 了 (le1) + Duration (+ 了 (le2))
Subject | The performer of the action. | 他 (tā) - He | 我 (wǒ) - I |
Verb | The action verb. | 看 (kàn) - watched | 学 (xué) - studied |
Object | The object of the action. | 电视 (diànshì) - TV | 中文 (zhōngwén) - Chinese |
Verb | Repetition of the action verb. | 看 (kàn) - watched | 学 (xué) - studied |
了 (le1) | Perfective aspect marker. | 了 (le) | 了 (le) |
Duration | The length of time. | 三个小时 (sān gè xiǎoshí) - three hours | 两年 (liǎng nián) - two years |
(+ 了 (le2)) | Optional sentence-final modal particle (for ongoing actions/states). | (Not present) | 了 (le) |
她看书看了两个小时。 (tā kàn shū kàn le liǎng gè xiǎoshí.) - She read books for two hours (and stopped reading).
他们学汉语学了三年了。 (tāmen xué Hànyǔ xué le sān nián le.) - They have been studying Chinese for three years (and are still studying).
的 (de) Structure
Verb + 了 (le1), potentially followed by the structural particle 的, and then the object. The Duration + (的) phrase effectively functions as an adjectival modifier for the object.
Subject + Verb + 了 (le1) + Duration (+ 的) + Object (+ 了 (le2))
Subject | The performer of the action. | 我 (wǒ) - I | 他们 (tāmen) - They |
Verb | The action verb. | 写 (xiě) - wrote | 住 (zhù) - lived |
了 (le1) | Perfective aspect marker. | 了 (le) | 了 (le) |
Duration | The length of time. | 一个小时 (yī gè xiǎoshí) - one hour | 五年 (wǔ nián) - five years |
(+ 的) | Optional structural particle; often omitted in casual speech. | 的 (de) | (Not present) |
Object | The object of the action. | 报告 (bàogào) - report | 公寓 (gōngyù) - apartment |
(+ 了 (le2)) | Optional sentence-final modal particle (for ongoing actions/states). | (Not present) | 了 (le) |
我写了一个小时的报告。 (wǒ xiě le yī gè xiǎoshí de bàogào.) - I wrote a report for one hour (and finished it).
他在这里住了五年了。 (tā zài zhèlǐ zhù le wǔ nián le.) - He has been living here for five years (and still lives here). Note the common omission of 的 with stative verbs like 住.
了 (le1), and duration follow.
Object + Subject + Verb + 了 (le1) + Duration (+ 了 (le2))
Object | The topic of the sentence, brought to the front for emphasis. | 那本书 (nà běn shū) - That book | 这个工作 (zhège gōngzuò) - This job |
Subject | The performer of the action. | 我 (wǒ) - I | 他 (tā) - He |
Verb | The action verb. | 看 (kàn) - read | 做 (zuò) - done |
了 (le1) | Perfective aspect marker. | 了 (le) | 了 (le) |
Duration | The length of time. | 两个小时 (liǎng gè xiǎoshí) - two hours | 半年 (bàn nián) - half a year |
(+ 了 (le2)) | Optional sentence-final modal particle (for ongoing actions/states). | (Not present) | 了 (le) |
那部电影我看了三个小时。 (nà bù diànyǐng wǒ kàn le sān gè xiǎoshí.) - That movie, I watched for three hours (and finished).
这份报告她写了一个月了。 (zhè fèn bàogào tā xiě le yī gè yuè le.) - This report, she has been writing for a month (and is still writing).
When To Use It
了 for duration fundamentally hinges on whether the action or state is completed or still ongoing up to the present moment. This distinction is paramount for conveying your message accurately.了)了 (le1) immediately after the verb, and omit the sentence-final 了 (le2), when the action has finished. The specified duration refers to the total time spent on that concluded action. This structure implies the activity is no longer happening, and a new state exists.- Rule:
Subject + Verb + 了 (le1) + Duration (+ Object, using Pattern 2 or 3 if applicable) - Purpose: To state how long an action lasted before concluding. This describes a past event with a defined temporal boundary.
- Example:
我昨天跑了半个小时。(wǒ zuótiān pǎo le bàn gè xiǎoshí.) - Yesterday I ran for half an hour. (The running started and finished yesterday within that half-hour). - Example:
他看了三个小时的电影。(tā kàn le sān gè xiǎoshí de diànyǐng.) - He watched a three-hour movie. (The watching action is over).
了)了 (le1) after the verb AND 了 (le2) at the end of the sentence when the action or state began in the past, has continued for the specified duration, and is still active or continuing into the present, or its effects are still directly relevant now. This structure emphasizes the duration up to the present moment.- Rule:
Subject + Verb + 了 (le1) + Duration + 了 (le2) (+ Object, using Pattern 2 or 3 if applicable) - Purpose: To indicate an action or state's continuous nature, having persisted from a past point up to and including the point of speaking.
- Example:
她学汉语学了三年了。(tā xué Hànyǔ xué le sān nián le.) - She has been studying Chinese for three years (and is still studying it now). - Example:
我等了你一个小时了！(wǒ děng le nǐ yī gè xiǎoshí le!) - I've been waiting for you for an hour! (The waiting started an hour ago and is still ongoing, often with an implication of impatience or exasperation).
认识 rènshi to know, 住 zhù to live, 结婚 jiéhūn to be married). For these, 了 (le1) can mark the inception of the state, with 了 (le2) then indicating its continuation for a duration up to the present. Without le2, it usually refers to a state that concluded.我认识他十年了。(wǒ rènshi tā shí nián le.) - I have known him for ten years (and still do). Here,le1marks the beginning of the acquaintance,le2its continuation.他们结婚五年了。(tāmen jiéhūn wǔ nián le.) - They have been married for five years (and are still married).
Common Mistakes
了 for duration. Recognizing these pitfalls is the first step toward correcting them and understanding the linguistic logic.- Incorrect:
我两个小时学习中文。(wǒ liǎng gè xiǎoshí xuéxí zhōngwén.) - (Literally: I two hours study Chinese.) - Correct (Verb Repetition):
我学习中文学习了两个小时。(wǒ xuéxí Zhōngwén xuéxí le liǎng gè xiǎoshí.) - I studied Chinese for two hours.
昨天 zuótiān yesterday, 三点 sān diǎn three o'clock) typically precede the verb, functioning as adverbials. Time durations always follow the verb or verb phrase.了 with Double 了:了 when a double 了 is required fundamentally changes the meaning from "ongoing" to "completed." This often leads to miscommunication about the current state of affairs.- Scenario: You are still waiting for a friend who is late.
- Incorrect:
我等了你半小时。(wǒ děng le nǐ bàn xiǎoshí.) - I waited for you for half an hour (implies you stopped waiting; perhaps you left or gave up). - Correct:
我等了你半小时了。(wǒ děng le nǐ bàn xiǎoshí le.) - I have been waiting for you for half an hour (and I am still waiting, conveying impatience).
Verb + Object without a structural adjustment (verb repetition or 的 structure) is generally ungrammatical, as it separates the verb and object with the duration.- Incorrect:
他看电视三个小时。(tā kàn diànshì sān gè xiǎoshí.) - (Literally: He watch TV three hours.) - Correct (Verb Repetition):
他看电视看了三个小时。(tā kàn diànshì kàn le sān gè xiǎoshí.) - He watched TV for three hours. - Correct (
的Structure):他看了三个小时的电视。(tā kàn le sān gè xiǎoshí de diànshì.) - He watched TV for three hours.
的:的 structure is valid, the verb repetition pattern is often more natural and common for expressing duration, particularly with ongoing actions. Do not feel compelled to always include 的.我学了两年中文。(wǒ xué le liǎng nián zhōngwén.) - I studied Chinese for two years. (Very natural and common)我学了两年中文的。(wǒ xué le liǎng nián zhōngwén de.) - (Less natural, sometimes implies the Chinese was of two years' study, rather than the action of studying lasting two years.)
过 (guò) for Duration:过 (guò) is an experiential aspect marker, signifying "have done something before" or "have experienced." It does not combine with duration expressions in the same way as 了 to indicate the length of a single, continuous action.- Incorrect:
我吃过半小时饭。(wǒ chī guò bàn xiǎoshí fàn.) - (Implies you have had the experience of eating a meal for half an hour at some point, rather than a specific event lasting that long.) - Correct:
我吃了半小时饭。(wǒ chī le bàn xiǎoshí fàn.) - I ate a meal for half an hour.
几 (jǐ):多久 (duōjiǔ) and 多长时间 (duō cháng shíjiān) are the standard question words. 几 (jǐ) is for asking "how many" or "how few" of countable items, not duration.- Incorrect for duration:
你几小时学习？(nǐ jǐ xiǎoshí xuéxí?) - (Sounds like asking for a quantity of hours, not the duration of an action.) - Correct:
你学习了多久？(nǐ xuéxí le duōjiǔ?) - How long did you study? - Correct:
你学习了多长时间了？(nǐ xuéxí le duō cháng shíjiān le?) - How long have you been studying (up to now)?
Real Conversations
Understanding how these grammar patterns manifest in authentic, everyday Chinese communication is crucial for practical usage. Native speakers naturally select the most concise and idiomatic structures, often reflecting emphasis or emotional nuance.
1. Expressing Ongoing Actions (Double 了)
This is extremely common in daily life when discussing current activities, work projects, or waiting, often conveying a sense of continuation, persistence, or even impatience.
- Texting with a friend: 你还在公司吗？我等你半小时了。 (nǐ hái zài gōngsī ma? wǒ děng nǐ bàn xiǎoshí le.) - Are you still at the company? I’ve been waiting for you for half an hour!
- The 等了...了 structure vividly conveys the ongoing waiting and the speaker's potential impatience.
- Discussing a project: 这个项目我们做了三个月了，快完成了。 (zhège xiàngmù wǒmen zuò le sān gè yuè le, kuài wánchéng le.) - We’ve been working on this project for three months, and it’s almost finished.
- Here, the double 了 confirms sustained effort and current progress towards completion.
- Social media post (about learning): 我学中文学了五年了，进步很大！ (wǒ xué zhōngwén xué le wǔ nián le, jìnbù hěn dà!) - I’ve been studying Chinese for five years, and I’ve made great progress!
- The verb repetition 学...学了 combined with the final 了 emphasizes the continuous learning journey and the pride in the sustained effort.
2. Expressing Completed Actions (Single 了)
Used to report finished tasks or past events where a specific duration was spent, and the action has now concluded.
- Answering a question about sleep: 昨晚我睡了八个小时。 (zuówǎn wǒ shuì le bā gè xiǎoshí.) - Last night I slept for eight hours.
- The single 了 after 睡 clearly indicates the action of sleeping is over.
- Reporting on a movie: 我昨天看了一部两个小时的电影。 (wǒ zuótiān kàn le yī bù liǎng gè xiǎoshí de diànyǐng.) - Yesterday I watched a two-hour movie.
- The 的 structure (两个小时的电影) modifies 电影, and 看了一部 signifies the completion of watching that specific movie.
3. Asking About Duration
多久 (duōjiǔ) and 多长时间 (duō cháng shíjiān) are the standard interrogative phrases for duration.
- In a casual chat: 你等了多久了？ (nǐ děng le duōjiǔ le?) - How long have you been waiting?
- The final 了 in the question indicates inquiry about an action that is presumed to be still ongoing.
- Asking about someone's stay: 你来北京来了多长时间了？ (nǐ lái Běijīng lái le duō cháng shíjiān le?) - How long have you been in Beijing?
- The 来...来了 verb repetition for the stative verb 来 (meaning 'to come and be here') is common when asking about residence duration.
4. Informal/Condensed Usage
In very casual speech or texting, if context is extremely clear, some elements might be omitted. However, for B1 learners, adhering to the full structures is strongly recommended to avoid ambiguity.
- Instead of 我等了你半小时了, one might sometimes hear 等了半小时了 if 我 (I) is clearly understood from context. This is more advanced and situation-dependent.
These examples illustrate that while grammatical rules provide a framework, the choice between structures often reflects the speaker's emphasis and the specific communicative context, especially regarding the ongoing nature of an event.
Quick FAQ
了 at all?Yes, but the meaning fundamentally shifts. Omitting 了 typically refers to habitual actions, planned future actions, or the potential/capacity for an action of a certain duration. It does not describe the completion or ongoing nature of a specific event.
我每天跑步半小时。(wǒ měitiān pǎobù bàn xiǎoshí.) - I run for half an hour every day. (Habitual action).他想睡八个小时。(tā xiǎng shuì bā gè xiǎoshí.) - He wants to sleep for eight hours. (Planned future action).她能看一天的书。(tā néng kàn yī tiān de shū.) - She can read for a whole day. (Potential capacity).
When the verb is intransitive (e.g., 睡 shuì to sleep, 跑 pǎo to run, 等 děng to wait) or when the verb itself primarily describes a state (e.g., 旅行 lǚxíng to travel, 住 zhù to live), the structure simplifies. There's no need for verb repetition or the 的 structure because there's no direct object to accommodate. The core pattern remains Subject + Verb + 了 (le1) + Duration (+ 了 (le2)).
他旅行了三个月。(tā lǚxíng le sān gè yuè.) - He traveled for three months (and finished traveling).你等了很久了。(nǐ děng le hěn jiǔ le.) - You've been waiting for a long time (and are still waiting).
的 (de) particle mandatory in the Verb + 了 (le1) + Duration + (的) + Object pattern?No, 的 is often optional in this construction, especially in spoken Chinese and with common duration phrases. Its inclusion can make the sentence sound slightly more formal or subtly emphasize the duration as a descriptor directly modifying the object. Omitting 的 is common and usually preferred in casual speech.
我学了三年中文。(wǒ xué le sān nián zhōngwén.) - I studied Chinese for three years. (Very common, no的).我学了三年的中文。(wǒ xué le sān nián de zhōngwén.) - I studied Chinese for three years. (Also correct,的is present; slightly more formal or emphasizes 'three-year-long Chinese').
Use 多久 (duōjiǔ) or 多长时间 (duō cháng shíjiān). These two are largely interchangeable in most contexts. Crucially, remember to include the appropriate 了 particles based on whether you're asking about a completed action or an ongoing one.
- Asking about a completed action:
你看了多久的电影？(nǐ kàn le duōjiǔ de diànyǐng?) - How long did you watch the movie for? - Asking about an ongoing action:
你在这里住了多久了？(nǐ zài zhèlǐ zhù le duōjiǔ le?) - How long have you been living here (up to now)?
了 (le1) and the sentence-final 了 (le2) in duration sentences?This is a critical distinction for B1 learners. The verbal 了 (le1), placed immediately after a verb, functions as a perfective aspect marker. It signals the completion or realization of the action itself for the specified duration. The sentence-final 了 (le2) is a modal particle that indicates a change of state or the continuation of an action/state up to the present moment. When both are present with duration, le1 indicates the action occurred for that time, and le2 asserts that this occurrence is still continuing or relevant now. When only le1 is present with duration, the action is definitively over.
Verb + 了 (le1)(alone with duration): Focuses on the action's completion after a duration. Example:他走了两个小时。(tā zǒu le liǎng gè xiǎoshí.) - He walked for two hours (and then stopped walking).Verb + 了 (le1) + Duration + 了 (le2): Focuses on the continuation of an action/state up to the present. Example:他走了两个小时了。(tā zǒu le liǎng gè xiǎoshí le.) - He has been walking for two hours (and is still walking).
Duration Structure Table
| Type | Structure | Example |
|---|---|---|
|
Affirmative
|
Verb + Duration + le
|
我睡了八小时
|
|
With Object
|
Verb + le + Duration + Object
|
我看了两小时书
|
|
Verb Repetition
|
Verb + Object + Verb + Duration + le
|
我学汉语学了两年
|
|
Negative
|
没 + Verb + Duration
|
我没睡八小时
|
|
Question
|
Verb + Duration + le + 吗?
|
你睡了八小时吗?
|
|
Question
|
Verb + Object + Verb + Duration + le + 吗?
|
你学汉语学了两年吗?
|
Common Time Contractions
| Full | Short |
|---|---|
|
一个小时
|
一小时
|
|
半个小时
|
半小时
|
Meanings
This structure indicates the total duration of a completed action.
Completed Duration
Describes the total time spent on an activity that has finished.
“{他|tā}{跑|pǎo}{了|le}{一|yī}{个|gè}{小|xiǎo}{时|shí}{步|bù} (He ran for an hour).”
“{我|wǒ}{看|kàn}{了|le}{两|liǎng}{天|tiān}{书|shū} (I read books for two days).”
Reference Table
| Form | Structure | Example |
|---|---|---|
|
Affirmative
|
V + Dur + le
|
跑了五公里
|
|
Object
|
V + le + Dur + Obj
|
看了两小时书
|
|
Repetition
|
V + Obj + V + Dur + le
|
学汉语学了两年
|
|
Negative
|
没 + V + Dur
|
没跑五公里
|
|
Question
|
V + Dur + le + 吗
|
跑了五公里吗
|
|
Time Question
|
V + 多长时间
|
跑了多长时间
|
|
Short Answer
|
Dur + le
|
跑了五公里
|
Formality Spectrum
我等待了一个小时。 (Waiting for someone.)
我等了一个小时。 (Waiting for someone.)
我等了一小时。 (Waiting for someone.)
我等了钟头。 (Waiting for someone.)
Duration Components
Verbs
- 学 study
- 跑 run
Time
- 小时 hour
- 天 day
Duration vs Point in Time
Examples by Level
{我|wǒ}{吃|chī}{了|le}{一|yī}{个|gè}{小|xiǎo}{时|shí}{饭|fàn}
I ate for an hour.
{他|tā}{睡|shuì}{了|le}{十|shí}{个|gè}{小|xiǎo}{时|shí}
He slept for 10 hours.
{我|wǒ}{走|zǒu}{了|le}{半|bàn}{天|tiān}
I walked for half a day.
{她|tā}{看|kàn}{了|le}{一|yī}{会|huì}{儿|r}{书|shū}
She read for a while.
{我|wǒ}{学|xué}{了|le}{两|liǎng}{个|gè}{小|xiǎo}{时|shí}{汉|hàn}{语|yǔ}
I studied Chinese for two hours.
{他|tā}{等|děng}{了|le}{我|wǒ}{三|sān}{十|shí}{分|fēn}{钟|zhōng}
He waited for me for 30 minutes.
{我|wǒ}{没|méi}{看|kàn}{电|diàn}{影|yǐng}
I didn't watch the movie.
{你|nǐ}{等|děng}{了|le}{多|duō}{久|jiǔ}
How long did you wait?
{我|wǒ}{打|dǎ}{电|diàn}{话|huà}{打|dǎ}{了|le}{一|yī}{个|gè}{小|xiǎo}{时|shí}
I talked on the phone for an hour.
{他|tā}{做|zuò}{作|zuò}{业|yè}{做|zuò}{了|le}{三|sān}{个|gè}{小|xiǎo}{时|shí}
He did homework for three hours.
{我|wǒ}{没|méi}{学|xué}{两|liǎng}{个|gè}{小|xiǎo}{时|shí}{汉|hàn}{语|yǔ}
I didn't study Chinese for two hours.
{你|nǐ}{旅|lǚ}{游|yóu}{旅|lǚ}{游|yóu}{了|le}{几|jǐ}{天|tiān}
How many days did you travel?
{这|zhè}{个|gè}{项|xiàng}{目|mù}{我|wǒ}{做|zuò}{了|le}{整|zhěng}{整|zhěng}{一|yī}{年|nián}
I worked on this project for a whole year.
{他|tā}{在|zài}{这|zhè}{里|lǐ}{住|zhù}{了|le}{五|wǔ}{年|nián}
He has lived here for five years.
{我|wǒ}{没|méi}{在|zài}{这|zhè}{里|lǐ}{住|zhù}{过|guò}{五|wǔ}{年|nián}
I haven't lived here for five years.
{你|nǐ}{开|kāi}{会|huì}{开|kāi}{了|le}{多|duō}{长|cháng}{时|shí}{间|jiān}
How long did the meeting last?
{他|tā}{连|lián}{着|zhe}{工|gōng}{作|zuò}{了|le}{三|sān}{十|shí}{六|liù}{个|gè}{小|xiǎo}{时|shí}
He worked continuously for 36 hours.
{这|zhè}{场|chǎng}{电|diàn}{影|yǐng}{放|fàng}{映|yìng}{了|le}{三|sān}{个|gè}{小|xiǎo}{时|shí}
This movie was screened for three hours.
{我|wǒ}{没|méi}{能|néng}{坚|jiān}{持|chí}{三|sān}{个|gè}{月|yuè}
I wasn't able to persist for three months.
{他|tā}{等|děng}{了|le}{足|zú}{足|zú}{一|yī}{个|gè}{上|shàng}{午|wǔ}
He waited for a whole morning.
{此|cǐ}{项|xiàng}{研|yán}{究|jiū}{持|chí}{续|xù}{了|le}{整|zhěng}{整|zhěng}{十|shí}{载|zài}
This research lasted for a full decade.
{他|tā}{在|zài}{那|nà}{个|gè}{位|wèi}{置|zhi}{上|shàng}{坐|zuò}{了|le}{二|èr}{十|shí}{年|nián}
He sat in that position for twenty years.
{我|wǒ}{未|wèi}{曾|céng}{等|děng}{过|guò}{那|nà}{么|me}{久|jiǔ}
I have never waited that long.
{他|tā}{跑|pǎo}{了|le}{一|yī}{个|gè}{马|mǎ}{拉|lā}{松|sōng}{的|de}{时|shí}{间|jiān}
He ran for the duration of a marathon.
Easily Confused
Learners mix up 'at 3 o'clock' and 'for 3 hours'.
Common Mistakes
我学了汉语两小时
我学了两个小时汉语
我没学了两个小时
我没学两个小时
我学汉语两个小时
我学汉语学了两个小时
我跑了步一小时
我跑了一小时步
Sentence Patterns
我___了___小时
Real World Usage
我等了你半小时！
我在那家公司工作了三年。
Verb Repetition
Smart Tips
Repeat the verb for better flow.
Pronunciation
Neutral tone
The 'le' in this structure is often unstressed.
Statement
我等了三小时↓
Neutral declaration.
Memorize It
Mnemonic
Duration is a 'length', so put it right after the 'action' (verb) to measure it.
Visual Association
Imagine a ruler (duration) being placed directly after a person running (verb) to measure their path.
Rhyme
Verb then time, then add a le, that's how long it came to be.
Story
Xiao Ming ran for an hour. He said: '我跑了一小时'. He was tired but happy. He repeated the verb to be sure: '我跑步跑了一小时'.
Word Web
Challenge
Write 3 sentences about what you did today using duration.
Cultural Notes
Very common in daily life to report time spent.
Similar usage, but sometimes uses '钟头' for hour.
Influenced by Cantonese, sometimes uses '个字' for 5 minutes.
The 'le' particle evolved from a verb meaning 'to finish'.
Conversation Starters
你昨天学了多久汉语？
你等了多久？
Journal Prompts
Common Mistakes
Test Yourself
我睡___八小时。
Which is correct?
Find and fix the mistake:
我没学了两个小时。
Arrange the words in the correct order:
All words placed
Click words above to build the sentence
I ran for one hour.
Answer starts with: a...
A: 你等了多久? B: ___
Use: 学, 三小时, 汉语
Which is a duration?
Score: /8
Practice Exercises
8 exercises我睡___八小时。
Which is correct?
Find and fix the mistake:
我没学了两个小时。
小时 / 我 / 了 / 睡 / 八
I ran for one hour.
A: 你等了多久? B: ___
Use: 学, 三小时, 汉语
Which is a duration?
Score: /8
Practice Bank
10 exercises了 / 两个 / 玩 / 游戏 / 他 / 小时
I waited for 20 minutes.
Match the meanings:
Choose the best question:
我写字写___一个小时了。
我三小时看电视了。
我读了半个小时___书。
Select the correct negative duration sentence:
He has lived in Beijing for ten years.
Reorder the words.
Score: /10
FAQ (8)
No, never use 'le' with '没'.
It makes the sentence flow naturally.
Yes, to mark the completion of the duration.
Use a different structure.
Yes, it's common.
It's neutral.
Most action verbs.
Use '多长时间'.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
He estudiado por dos horas.
Chinese uses no preposition.
J'ai étudié pendant deux heures.
Chinese uses no preposition.
Ich habe zwei Stunden gelernt.
Chinese uses particle 'le'.
二時間勉強した。
Chinese uses 'le' for completion.
درست لمدة ساعتين.
Chinese has no equivalent preposition.
我学了两个小时。
None.
Learning Path
Prerequisites
Related Videos
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