在
Pattern
Subject + 在 + place
Key words
Core idea
Locative 在 places someone or something in a location. When the sentence also has an action, the location phrase usually appears before the action.
This 在 is about place, not progress. What follows it tells you which job it is doing.
Place phrase boundary
Many locations need a position word such as 上, 里, or “beside.” Treat those as part of the place phrase rather than as separate afterthoughts.
With ordinary activities, the location phrase usually comes before the action. Do not copy English by placing “at school,” “at home,” or “in the library” after the verb.
Do not use locative 在 after motion verbs like “go” just to mark a destination. Destination patterns work differently.
Compare with progressive markers
If 在 is followed by a place, read it as location. If it is followed by an action, it may be marking an action in progress. The character is the same; the job is different.
Examples
我在学校。
Wǒ zài xuéxiào.
I am at school.
在 introduces the location.
手机在桌上。
Shǒujī zài zhuō shàng.
The phone is on the table.
他在图书馆看书。
Tā zài túshūguǎn kàn shū.
He reads at the library.
A location phrase can come before the action.
Common mistakes
Avoid
我学校在。
Use
我在学校。
在 comes before the place in this location pattern.
Avoid
我去在学校。
Use
我去学校。
Use 去 directly with the destination. 在 marks where someone is or where an action happens.
Seen in stories
The Missing Phone
小明和朋友在捷运站。
Xiao Ming and his friend are at the MRT station.
The Missing Phone
他问：“我的手机在哪里？”
He asks, “Where is my phone?”
The Missing Phone
朋友说：“手机在悠游卡旁边。”
His friend says, “The phone is beside the EasyCard.”
The Missing Phone
小明低头一看，手机就在他手上。
Xiao Ming looks down; the phone is right in his hand.
The LINE Call at the Gate
放学后，小晴在校门口等阿哲。
After school, Xiaoqing waits for Azhe at the school gate.
Show 10 more story examples
The Metro Exit
小安问：“一号出口在哪里？”
Xiao An asks, “Where is Exit One?”
The Metro Exit
小美说：“在前面。”
Xiaomei says, “It is ahead.”
The Name on the Cup
老板在杯子上写名字。
The owner writes names on the cups.
The Taxi at Eight
晚上八点，小安和小美在门口等出租车。
At eight in the evening, Xiao An and Xiaomei wait for a taxi at the door.
The Taxi at Eight
小安看手机，说：“到了，在后门。”
Xiao An looks at his phone and says, “It has arrived. It is at the back door.”
The Wrong Bus Stop
早上，小安在公交车站等公交车。
In the morning, Xiao An waits for the bus at a bus stop.
The Blue Lunchbox
林姐在第一节车厢看见一个蓝色饭盒。
Sister Lin sees a blue lunchbox in the first carriage.
The Blue Lunchbox
她问：“谁的饭盒在这里？”
She asks, “Whose lunchbox is here?”
The Blue Lunchbox
同时，小赵在第六节车厢发现饭盒不见了。
At the same time, Xiao Zhao discovers in the sixth carriage that his lunchbox is gone.
The Blue Lunchbox
最后，小赵和饭盒在第三节车厢见面了。
In the end, Xiao Zhao and the lunchbox meet in the third carriage.