Verb + 了 + Duration (did for a length of time)
IntroducedA duration differs from a clock time
- You describe the length of yesterday's sleep.
- I我sleep睡(completed / change)了eight八(measure word)个hour小时。 — eight八(measure word)个hour小时 measures how long the sleeping lasted.
You describe the length of yesterday's sleep. What does 我睡了八个小时。 communicate?
八个小时 measures how long the sleeping lasted. 八点 names a clock time instead. A completed duration alone does not determine whether a longer habit continues: 我学了三年中文 reports three years without automatically proving that study has ended forever.
Build the form
- The pattern in this lesson is Verb + (completed / change)了 + Duration (did for a length of time). Locate it in the original interlinear examples below.
- Keep the words in their demonstrated positions; the pattern must fit the intended situation as well as the sentence form.
I我study学了three三year年Chinese中文。
Using the lesson pattern in this demonstrated example: I studied Chinese for three years: 我学 ____ 三年中文。
Verb + 了 + Duration: 学了三年 = studied for three years.
Read examples in context
he他sleep睡了eight八(measure word)个hour小时。
- In the opening example, I我sleep睡(completed / change)了eight八(measure word)个hour小时。: eight八(measure word)个hour小时 measures how long the sleeping lasted.
- Explain who acts, what is described and which time or group is relevant before choosing an English paraphrase.
What does the duration answer?
It is a LENGTH (how long), placed after the verb: 睡了八个小时.
Build: “I studied Chinese for three years.”
Subj + Verb + 了 + Duration: 我 + 学了 + 三年中文.
Know the boundary
- eight八point点 names a clock time instead.
- A completed duration alone does not determine whether a longer habit continues: I我study学(completed / change)了three三year年Chinese中文 reports three years without automatically proving that study has ended forever.
The duration goes before the verb.
Duration follows the verb (+了): 学了三年中文.
A duration with one 了 always proves that the activity has ended permanently.
八点 names a clock time instead. A completed duration alone does not determine whether a longer habit continues: 我学了三年中文 reports three years without automatically proving that study has ended forever. 八个小时 measures how long the sleeping lasted.
Use the distinction
- eight八(measure word)个hour小时 measures how long the sleeping lasted.
- eight八point点 names a clock time instead. A completed duration alone does not determine whether a longer habit continues: I我study学(completed / change)了three三year年Chinese中文 reports three years without automatically proving that study has ended forever.
Read the full reference: HSK 3 grammar — Verb phrases.
You describe the length of yesterday's sleep. Close the examples. Say a Mandarin response, then write it in Chinese. Explain briefly in English what the lesson’s pattern adds. Compare with the model, then change one detail and try again.
This is supported productive practice. Compare meaning and structure; your answer need not copy the model. A partner or teacher must hear the spoken response to comment on pronunciation.