Subject + Verb + 了
Reach for this when something has happened or a state has changed — 'the baby got sick,' 'mom cried,' 'the plane took off.' The particle 了 at the end of the clause is a change-of-state marker: things were one way, now they're another. It's one of the first 了's HSK 1 learners meet, and one of the most misused. Neutral register, the bread-and-butter way to talk about what just happened.
Structure
Subject + Verb + (Object) + 了
[Subject] [Verb] le
How to Think About It
Sentence-final 了 isn't a past-tense marker — it's a 'new situation' marker. 他来了 = 'he's here now (he wasn't before).' 他来 alone is just 'he comes,' no change implied. Think of 了 as 'and now this is the state of the world.' If nothing changed, no 了. Past time alone doesn't trigger 了; the change does.
Examples
孩子睡了。
Háizi shuì le.
The kid fell asleep.
下雨了。
Xiàyǔ le.
It's started raining.
他生病了。
Tā shēngbìng le.
He got sick.
Common Mistake
Learners attach 了 to every past-time verb, even when the sentence is describing a routine or habit. 了 marks a change, not a tense — habitual past actions don't need it.
我小时候每天去学校了。
我小时候每天去学校。
Don't Confuse With
Verb + 过
Marks an experience ('have done X before'). 了 marks a change of state at this moment; 过 marks that something happened at some point in the past.
Verb + 着
Ongoing state ('door is open'). 了 is for the moment the state CHANGED ('door opened').
Verb-了 (mid-sentence)
When 了 sits right after the verb (not at the end), it marks the completion of that specific verb. Sentence-final 了 is bigger — it's about the situation as a whole.
Practice
Fill in: 妈妈哭____。
Show answer
了
Fill in: 宝宝____了。 (woke up)
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醒
Arrange: 飞机 / 了 / 走 / 已经
Show answer
飞机已经走了。
Translate to Chinese: The lights turned off.
Show answer
灯关了。
Write a sentence with 了 describing a change you noticed today.
Show answer
今天天气变冷了。
Hear It in Real Episodes
This pattern appears in 2 Fluentide episodes:
Related Grammar Patterns
Acquire by listening
Hear Subject + Verb + 了 in real Chinese, not in a textbook.
Fluentide picks the next news episode at your level, so this pattern shows up again and again in real context. The transcript marks it, the audio drills it. Free to start, no card.