在 means “at” or “in” — you’ll use it constantly to say where something is. But in Chinese, saying “on the table” or “in the box” needs one more small word after the location, called a locative word (方位詞方位词). This page covers what those words are, and the two ways to put a location sentence together.
一 Locative Words (方位詞方位词)
These are small words that describe direction or position — like “on top,” “underneath,” “inside.” You’ll almost always need one to say exactly where something is.
Word
Meaning
上
up, top, above
下
down, bottom, under
裡里
in
外
out
前
front
後后
back, behind
左
left
右
right
旁
beside
中間中间
in between
All of these can combine with 邊边 (side) or 面 (miàn, side) to make a full direction word, like “上面” (top side) or “上邊上边” (also top side). But 左, 右, and 旁 can only combine with 邊边, never 面 — and 中間中间 doesn’t combine with either.
Word
+ 面 miàn
+ 邊边 biān
上
上面上面
上邊上边
下
下面下面
下邊下边
裡里
裡面里面
裡邊里边
外
外面外面
外邊外边
前
前面前面
前邊前边
後后
後面后面
後邊后边
左
❌
左邊左边
右
❌
右邊右边
旁
❌
旁邊旁边
中間中间
❌
❌
二 Two Ways to Say Location
There are two ways to build a location sentence in Chinese — one more casual, one more formal. They mean the same thing.
Casual: Subject + 在 + Location + Locative Word
書书在桌子上
The book is on the table.
我的手機手机不在包裡里
My phone is not in the bag.
媽媽的傘伞在不在門门外?
Is mom’s umbrella outside the door?
小貓在我頭上睡覺睡觉,小狗在我腳脚旁睡覺睡觉,我先生在地上睡覺睡觉
The kitten sleeps above my head, the dog sleeps beside my feet, and my husband sleeps on the floor.
When the location is a country or city name — like 台灣台湾, New York, or Shanghai — you don’t add a locative word at all. Just 我在台灣台湾 (“I am in Taiwan”) — never 我在台灣裡台湾里.