HSK 1Particles
Change of State 了
Sentence-final 了 indicates a new situation or change of state.
Pattern
Sentence + 了 (at the end)
Explanation
Sentence-final 了 indicates a change of state — something that wasn't true before is now true.
This is different from verb-了 (completed action). '我饿了' means 'I've become hungry' (I wasn't hungry before, now I am).
Examples
我饿了。
Wǒ è le.
I'm hungry (now).
New state: wasn't hungry → now hungry.
天黑了。
Tiān hēi le.
It's gotten dark.
Change: was light → now dark.
他会说中文了。
Tā huì shuō Zhōngwén le.
He can speak Chinese now.
New ability acquired.
Common Mistakes
Wrong
Confusing 我吃了饭 with 我饿了
Correct
我吃了饭 = I ate. 我饿了 = I've become hungry.
Verb-了 = completed action. Sentence-final 了 = change of state.
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