At, on and in work for place as well as time, and the idea is similar. At is a point on a map, on is a surface, and in is a space with walls or borders. A person at the door is a point; a cup on the table is on a surface; a cat in the box is inside a space.
The three words also carry fixed patterns. We sit in a car but on a bus. We live on a street in a city. We wait at the bus stop. These patterns matter more than the picture in your head.
This page explains the place rule, lists the fixed phrases that learners need most, adds other position words such as under and between, and ends with a 20-question drill with a rule explanation under every answer.
The rule
In: inside a space
- Use in for a container or an enclosed space: in the box, in the fridge, in the garden, in the car.
- Use in for cities, countries and large areas: in London, in Japan, in the north, in the mountains.
- Use in for liquids and lines: in the water, in the mirror, in a queue.
- The space does not need walls: in the sky, in the field, in the sea.
On: on a surface
- Use on for a flat surface: on the table, on the wall, on the floor, on the page.
- Use on for a line or an edge: on the river, on the coast, on the left.
- Use on for public transport and bikes: on the bus, on the train, on a plane, on a bike.
- Use on for streets, floors and islands: on Oxford Street, on the second floor, on a small island.
At: a point or a place of activity
- Use at for a point on a map: at the bus stop, at the corner, at the traffic lights, at the door.
- Use at for places where something happens: at school, at work, at the station, at the party.
- Use at for a person's home or workplace: at Anna's, at the doctor's.
- At does not mean inside. "At the station" means near it or in that place, not necessarily in the building.
Fixed patterns with transport and buildings
- Cars and taxis take in: in a car, in a taxi. Buses, trains and planes take on: on a bus, on a train.
- Buildings seen as activities take at: at school, at university, at church, at home.
- Buildings seen as buildings take in or at: in the school building, at the hospital entrance.
- The bed takes in or on by meaning: in bed (sleeping), on the bed (on top of it).
Other position words
- Under, over, above and below compare heights: under the bridge, over the door, above the clouds.
- Between is for two things; among is for three or more.
- Next to, beside, near and by mean close to something.
- In front of, behind, opposite and across from show facing and distance.
Examples
- The keys are in my pocket.A pocket is a container, so it takes in.
- The book is on the shelf.A shelf is a surface, so it takes on.
- I will meet you at the station entrance.The entrance is a meeting point, so it takes at.
- She lives in Madrid.Cities take in.
- They live on a quiet street.Streets take on.
- We travelled on a crowded train.Trains and buses take on.
- He waited in the car while she shopped.Cars take in.
- The children are at school until three.School as an activity takes at.
- The cat is under the table.Under compares height and position.
- The bank is between the cafe and the bookshop.Between connects two places.
Common mistakes
- Wrong: She is in the bus. Right: She is on the bus.
- Buses, trains and planes take on. Cars and taxis take in.
- Wrong: I met him in the bus stop. Right: I met him at the bus stop.
- A bus stop is a meeting point on a map, so it takes at.
- Wrong: The picture is in the wall. Right: The picture is on the wall.
- A wall is a surface, so it takes on.
- Wrong: He lives on Tokyo. Right: He lives in Tokyo.
- Cities are large spaces, so they take in.
- Wrong: The shop is in the corner of the street. Right: The shop is on the corner of the street.
- A corner is treated as a point on a line, so it takes on in this phrase.
Practice drill
Answer all 20 questions. Each answer is marked at once, and the rule is explained under the question.
The milk is ___ the fridge.
Show answer and explanation
Answer: A. in The fridge is a space or container, so it takes in.
Your phone is ___ the table.
Show answer and explanation
Answer: B. on The table is a surface, so it takes on.
We met ___ the bus stop.
Show answer and explanation
Answer: C. at A bus stop is a meeting point on a map, so it takes at.
She lives ___ Paris.
Show answer and explanation
Answer: D. in A city is a large space, so it takes in.
They live ___ a quiet street.
Show answer and explanation
Answer: A. on A street is a line, and streets take on.
I read my book ___ the train.
Show answer and explanation
Answer: B. on Trains take on in the fixed transport pattern.
She waited ___ the car while I paid.
Show answer and explanation
Answer: C. in A car is a container, so it takes in.
The children are ___ school now.
Show answer and explanation
Answer: D. at School as an activity takes at, meaning they are pupils there.
The cat is sleeping ___ the table.
Show answer and explanation
Answer: A. under Under describes the position below the table, which matches a sleeping cat.
The bank is ___ the cafe and the bookshop.
Show answer and explanation
Answer: B. between Between connects exactly two places, so it fits here.
There is a picture ___ the wall.
Show answer and explanation
Answer: C. on The wall is a surface, so the picture is on it.
He is ___ home today.
Show answer and explanation
Answer: D. at At home is the fixed phrase for being at the place where you live.
The boat sailed ___ the river.
Show answer and explanation
Answer: A. on A river is treated as a line or surface, so boats travel on it.
There is a fly ___ the ceiling.
Show answer and explanation
Answer: B. on The ceiling is a surface, and the fly is on it.
I will wait for you ___ the corner.
Show answer and explanation
Answer: C. at A corner works as a point, so it takes at.
She put the flowers ___ the vase.
Show answer and explanation
Answer: D. in A vase is a container, so the flowers go in it.
The plane flew ___ the clouds.
Show answer and explanation
Answer: A. above Above compares height and means higher than the clouds.
He sat ___ me during the lesson.
Show answer and explanation
Answer: B. next to Next to means beside, which describes two people sitting together.
We arrived ___ the airport at noon.
Show answer and explanation
Answer: C. at The airport is a point in a journey, so it takes at.
The cafe is ___ the theatre, on the other side of the road.
Show answer and explanation
Answer: D. opposite Opposite means facing the theatre across the road, so it fits the meaning.
Drill complete
You answered every question.
Next topic: By vs until: deadline or durationTake the level test
Questions learners ask
What is the difference between "at school" and "in the school"?
At school describes the activity of being a pupil there. In the school describes the building as a space: a parent waiting in the school is in the building, not at school as a pupil. The same pattern appears with at work and in the office.
Why is it "in a car" but "on a bus"?
A car is small enough to sit inside like a container. A bus, a train and a plane are large enough to stand and walk on, so speakers treat them as surfaces or platforms. It is a fixed pattern; learn the pairs together.
Can I say "at New York" instead of "in New York"?
Use in for cities and countries. At New York only works if the city is a stop on a journey: "The plane stopped at New York." Even then, on the way to New York is more natural for most learners.
More grammar topics
By vs until: deadline or duration
By names the latest moment for a finished action. Until names the end of a continuing situation. The verb decides which one you need.
How much vs how many: count the noun
How many counts separate things. How much measures an amount, a price or an uncountable idea.
Ever and never with the present perfect
Ever means at any time up to now, and it lives in questions. Never means at no time up to now, and it lives in statements.
Take the free A1 to C2 level test to find your starting point.