HSK 1 · VERSION 2.0#28
Expressing Existence with “zài”
在（表示存在 / 位置）
How it works
在 can show where someone or something is located.
The pattern
Subject + 在 + Place
Example sentences
我在家。
I am at home.
老师在学校。
The teacher is at school.
书在桌子上。
The book is on the table.
Usage note
This 在 is different from 在 + verb, which means an action is in progress.