When 了 le sits at the very end of a sentence, it tells you that something is different now. A new situation has started, or things have changed from how they were before. Grammar books sometimes call this one “了2” to tell it apart from the 了 le that comes right after a verb.
一 The Basic Pattern
Subject + Verb / Adj. + (Object) + 了
Put 了 le at the end of the sentence. It adds the feeling of “now” or “anymore”: the situation is not what it used to be.
王先生五年前很胖，現在现在瘦了
Mr. Wang was fat five years ago, but now he’s gotten thin.
學学中文的人多了
There are more people learning Chinese now.
It wasn’t like that before.
東西东西都貴贵了
Everything has gotten expensive.
Things used to be cheaper.
我飽饱了！
I’m full!
I was hungry before.
我不愛爱你了！
I don’t love you anymore!
I used to love you. With 不 bù, 了 le means “not anymore.”
二 Asking Questions
Add 嗎吗ma at the end to ask whether something has happened yet. 了 le still goes after the verb and object, and the question word 嗎吗ma comes last.
Subject + Verb + (Object) + 了 + 嗎吗
你喝咖啡了嗎吗？
Have you had your coffee yet?
This suggests you know the person drinks coffee, and you’re checking whether “had coffee” has happened yet today.
你付錢付钱了嗎吗？
Have you paid?
When a sentence ends with a particle like 嗎吗ma, 吧 ba, 啊 a or 呢 ne, 了 le doesn’t move to the very end. It sits right before that particle.
三 Compare These 5 Questions
These five questions look almost the same, but each one asks something different. Pay attention to where 了 le goes, and to the words around it.
你喝咖啡嗎吗？
Do you drink coffee?
A general question about your habits. Nothing else is implied.
你喝了咖啡嗎吗？
Did you drink the coffee?
Here 了 le comes right after the verb. It focuses on the action itself: did the drinking actually happen?
你喝咖啡了嗎吗？
Have you had your coffee yet?
Sentence-final 了 le: has the situation changed from “not yet” to “done”?
你要喝咖啡嗎吗？
Do you want some coffee?
An offer, about right now or the near future.
你在喝咖啡嗎吗？
Are you drinking coffee right now?
在 zài shows the action is happening at this moment.
四 下雨了 vs. 下了雨
Here’s a quick way to feel the difference between 了 le at the end of a sentence and 了 le right after a verb.
下雨了 xiàyǔ le
外面下雨了！
“It’s raining now.” A new situation: it wasn’t raining a moment ago, and now it is. This is a complete sentence on its own.
下了雨 xià le yǔ
下了雨以後以后，路很滑
“After it rained, the road got slippery.” 了 goes after the verb to say the rain happened. It usually needs more to follow, so it can’t stand alone.
五 Common Mistakes
❌ 他以前很胖，現在现在瘦
✅ 他以前很胖，現在现在瘦了
You’re describing a change (he used to be fat), so the sentence needs 了 le at the end. Without it, the sentence sounds unfinished.
❌ 你喝咖啡嗎吗了？
✅ 你喝咖啡了嗎吗？
了 le goes right before a final particle like 嗎吗ma, not after it.
❌ 我不愛爱了你
✅ 我不愛爱你了
This 了 le belongs to the whole sentence, so it goes at the very end, after the object 你 nǐ.
六 Practice
Tap the words below in the right order to build the sentence, then check your answer. If it’s wrong, you can try again as many times as you like, or hit “Show answer” if you get stuck. Careful: some tiles are traps and are not needed!
Question 1 of 10
“It’s autumn now, and the weather has gotten cold.”
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秋天到了，天氣天气冷了
Autumn has arrived and the weather has changed, so both halves end with 了 le.
“My phone is out of battery.”
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我的手機手机沒没電电了
It had battery before and now it doesn’t: a change, so 了 le goes at the end. The 過过guò tile is a trap.
“Have you eaten yet?”
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你吃飯吃饭了嗎吗？
了 le comes right before 嗎吗ma. This is also a very common friendly greeting, a bit like “How are you?”
“I didn’t used to like vegetables, but now I do.”
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我以前不喜歡喜欢吃青菜蔬菜，現在现在喜歡喜欢了
Starting with 以前 yǐqián is also correct.
The “before” half is described normally, and the “now” half gets 了 le to show the change.
“He doesn’t smoke anymore.”
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他不抽菸抽烟了
不 bù + 了 le at the end = “not anymore.” The 沒没méi tile is a trap.
“My little sister has gotten taller.”
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我妹妹長长高了
長高长高zhǎnggāo means “grow taller,” and 了 le shows she’s taller now than before. The 很 hěn tile is a trap.
“Has the movie started yet?”
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電影电影開始开始了嗎吗？
You’re asking whether the situation has changed from “not started” to “started.” The 在 zài tile is a trap.
“He’s 18 now. He can drive.”
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他十八歲岁了，可以開車开车了
Turning 18 is a new situation, and so is being allowed to drive. Each half gets its own 了 le.
“It’s too late. I should go home.”
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太晚了，我該该回家了
太晚了 tài wǎn le (“it’s gotten too late”) and 我該回家了我该回家了wǒ gāi huíjiā le (“it’s time for me to go home now”) both show a change in the situation.
“Now I understand what you mean.”
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我懂你的意思了
You didn’t understand before, and now you do. 了 le goes at the very end, after the object 你的意思 nǐde yìsi.
