Subject + 正在/在 + Verb
Reach for this when you want to say someone is in the middle of doing something right now — the Chinese equivalent of English '-ing' for ongoing action. Put 在 or 正在 right before the verb and you've marked the action as in progress. Use it to answer 'what are you doing?', to describe a scene, or to set up an interruption ('I was eating when she called').
Structure
[SUBJECT] 正在 / 在 [VERB] (OBJECT)
zhèngzài / zài + verb
How to Think About It
Chinese doesn't conjugate verbs for tense — instead it sprinkles in aspect markers. 在 is the progressive marker; add 正 to emphasize 'right at this very moment.' 正在 is slightly more vivid and immediate than plain 在. Optionally, you can also add 呢 at the end of the sentence for an even softer, more conversational feel ('他在看书呢'). All three — 在, 正在, ...呢 — coexist and can stack; they're not mutually exclusive.
Examples
我正在吃饭。
Wǒ zhèngzài chīfàn.
I am eating right now.
他在看书。
Tā zài kàn shū.
He is reading a book.
妈妈正在做菜。
Māma zhèngzài zuò cài.
Mom is cooking.
Common Mistake
Learners use 了 with 正在/在 because 了 feels like an all-purpose verb marker. But 了 signals completion, which directly contradicts 'in progress.' The two markers fight each other. Drop 了 when you're using 在/正在.
他正在看了电视。
他正在看电视。
Don't Confuse With
Verb + 着
着 marks a state that continues ('door is open,' '她穿着红衣服' — she's wearing red). 正在/在 marks a dynamic action in progress. Often you can pair them: '她正在听着音乐.'
在 + Place
Same character 在 has another job: as a preposition meaning 'at / in (a place).' '我在家' = 'I'm at home.' Before a verb it's progressive; before a noun it's locative. Position tells you which one.
Verb + 了
了 after the verb marks completion or change ('I ate'). 正在/在 before the verb marks ongoing action ('I'm eating'). Opposite ends of the aspect spectrum — don't combine them on the same verb.
Practice
我 ___ 听音乐。
Show answer
在
他正 ___ 打电话。
Show answer
在
Put in order: [写 / 我 / 作业 / 正在]
Show answer
我正在写作业。
Translate to Chinese: 'My older sister is studying Chinese.'
Show answer
我姐姐在学中文。
Write one sentence describing what you are doing right now, using 在 or 正在.
Show answer
Example answer: 我正在学中文语法。 (I am studying Chinese grammar.)
Hear It in Real Episodes
This pattern appears in 1 Fluentide episode: