Grammar lesson · A2 · B1 · B2
Small words, big headaches. For time and place, most of the work is done by three prepositions: in, on and at. They go from general to specific: in for big spaces and long periods, on for surfaces and days, at for exact points. For movement you need a different set: into, onto, through, across and friends. Below: the rules, the exceptions, and practice questions with answers.
RM has a meeting at 10 on Monday in October.
Jin is at the café on the corner in Seoul.
| Use it for | Examples | |
|---|---|---|
| at | Clock times, exact moments, and a few fixed phrases | at 7 o’clock, at midnight, at noon, at night, at the moment, at Christmas, at the weekend |
| on | Days, dates and special days | on Monday, on 14 February, on my birthday, on Christmas Day, on Friday evening |
| in | Longer periods: parts of the day, months, seasons, years, centuries | in the morning, in July, in summer, in 2025, in the 1990s |
Before next, last, this, every, and with today, tomorrow, yesterday, you don’t need a preposition:
| Use it for | Examples | |
|---|---|---|
| at | A point, an address, or a place where an activity happens | at the bus stop, at the door, at 25 Hill Street, at school, at work, at home, at a concert, at a party |
| on | Surfaces, lines, floors of a building, and most public transport | on the table, on the wall, on the second floor, on the left, on page 5, on a bus, on the train, on a plane |
| in | Inside a space with limits: rooms, containers, cities, countries, cars | in the kitchen, in a box, in the photo, in Seoul, in Korea, in a car, in a taxi |
When something moves from one place to another, you usually need a preposition that shows the direction.
The biggest confusion is between a position (where something is) and a movement (where something goes).
| Jimin is in the kitchen. (position) | Jimin ran into the kitchen. (movement) |
| The cat is on the table. (position) | The cat jumped onto the table. (movement) |
| j-hope is at the station. (position) | j-hope is going to the station. (movement) |
| The boat is under the bridge. (position) | The boat sailed under the bridge. (same word for both) |
In relaxed speech you will hear in and on with movement verbs too (jump in the pool, put it on the table). With put that is completely normal. But when a test asks about entering or landing on something, choose into or onto.
Fill the gap, then open the answer.
on — days take on.
in — in the morning / afternoon / evening, but at night.
at — a clock time.
on — buses, trains and planes take on.
in — arrive in a city or country.
across — from one side of a bridge to the other.
out of — movement from inside something.
no preposition — We’re going to the concert next Saturday. Nothing goes before next.
Use at for clock times and exact moments (at 7 o’clock, at night), on for days and dates (on Monday, on 14 February), and in for longer periods such as months, years, seasons and parts of the day (in July, in 2025, in the morning).
Use arrive in for cities and countries (We arrived in Seoul) and arrive at for buildings and smaller places (She arrived at the airport). Arrive to is a common mistake. If you want a phrase with to, use get to: We got to Seoul at midnight.
In shows position: where something is (The cat is in the box). Into shows movement from outside to inside (The cat jumped into the box). The same pattern works for on and onto.
Both are correct. At the weekend is British English and on the weekend is American English. Pick one and use it consistently.
Mixed grammar review Past simple and irregular verbs Present simple vs present continuous Present perfect Past continuous Future forms: will and going to
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