The good news: 在 zài works for both quick and long-running actions, while 正在 zhèngzài adds a bit of emphasis on this exact moment. In everyday speech, 在 zài is the one you’ll hear most.
1 S + (正)在 + V + O
在 zài and 正在 zhèngzài sit right before the verb — no extra grammar needed to turn a sentence into an ongoing action.
我在學中文
我在学中文
I am learning Chinese.
This can mean either right this moment, or that you’re in the process of learning Chinese overall.
我正在學中文
我正在学中文
I am learning Chinese right now.
At this exact moment, you’re learning Chinese.
我正在看電視呢!你等一下!
我正在看电视呢!你等会儿!
I’m watching TV right now! Hold on a sec!
爸爸在生氣,你現在別去跟他說話
爸爸在生气,你现在别去跟他说话
Dad’s angry right now — don’t go talk to him.
生氣气 isn’t an adjective in Chinese — it’s a verb-object compound.
💬 Texting shorthand
When messaging Chinese friends, it’s common to see “在忙嗎吗? zài máng ma?” (are you busy?) and “在嗎吗? zài ma?” (are you around?) — quick ways to check if someone’s available.
2 Negation
When negating 在 zài or 正在 zhèngzài, use 沒 méi — not 不 bù — about 95% of the time. That’s because you’re denying a plain fact, not stating a personal decision.
老師沒在教課
老师没在教课
The teacher isn’t teaching right now.
他沒在寫作業,他在睡覺
他没在写作业,他在睡觉
He’s not doing his homework — he’s sleeping.
No judgment, just stating the fact.
你為什麼不在寫作業!?
你为什么不在写作业!?
Why aren’t you doing your homework!?
Carries a personal expectation, not just a neutral report.
⚠️ Common mistake — 不在 means something else entirely
不在 bú zài means “not located at” — a completely different meaning from negating the progressive action. To say an action isn’t happening, use 沒在 méi zài.
❌他不在睡覺他不在睡觉
✅他沒在睡覺他没在睡觉
不在 would mean “he’s not there” — for “he’s not sleeping,” you need 沒在.
3 Question
Add 嗎吗 ma to the end of a sentence to turn it into a question. The 在不在 zài bú zài A-not-A pattern doesn’t work here.
小狗在吃飯嗎
小狗在吃饭吗?
Is the puppy eating?
小狗沒在吃飯嗎
小狗没在吃饭吗?
Isn’t the puppy eating?
你有沒有在看書?
你有没有在看书?
Are you reading?
Common in Taiwan, but not standard — skip this on the HSK test.
❌小貓在不在睡覺小猫在不在睡觉?
✅小貓在睡覺嗎小猫在睡觉吗?
Progressive 在 doesn’t take the A-not-A question pattern — add 在嗎吗 instead.
4 Practice
Translate each sentence into Chinese, then tap the card to check your answer.
01I am eating.
我在吃飯
我在吃饭。
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02She is doing homework right now.
她正在寫作業
她正在写作业。
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03He is not sleeping.
他沒在睡覺
他没在睡觉。
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04Is Mom cooking?
媽媽在做飯嗎
妈妈在做饭吗?
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05You said you were sick — why are you watching a movie instead of sleeping!
你說你生病了,你為什麼在看電影沒在睡覺!?
你说你生病了,你为什么在看电影没在睡觉!?
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06Wait a sec, I’m watching TV!
等一下,我正在看電視呢!
等一下,我正在看电视呢!
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07Are you busy right now?
你在忙嗎?
你在忙吗?
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08The cat isn’t eating.
貓沒在吃飯
猫没在吃饭。
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09They are studying Chinese in the classroom right now.
他們正在教室學中文
他们正在教室学中文。
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10Why aren’t you listening to the teacher?
你為什麼沒在聽老師說話?
你为什么没在听老师说话?
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