Chapter 6: Prepositions — In, On, At and Beyond

Prepositions are the glue of English sentences, linking nouns to the rest of the clause. Mastering in, on, and at — along with movement prepositions — is essential for natural fluency.

Prepositions of Time

Preposition	Use	Examples
at	Specific times, holidays	at 3 pm, at midnight, at Christmas
on	Days and dates	on Monday, on March 15, on my birthday
in	Months, years, seasons, longer periods	in March, in 2020, in winter, in the morning

Memory trick: Think of containers. in = largest container (month, year), on = flat surface (day), at = a point (specific time).

Prepositions of Place

Preposition	Use	Examples
at	A specific point or location	at the bus stop, at work, at home
on	A surface or line	on the table, on the wall, on the road
in	Inside an enclosed space	in the box, in the city, in the car

Prepositions of Direction and Movement

Preposition	Meaning	Example
to	destination	She went to school.
into	movement inside	He walked into the room.
onto	movement onto a surface	The cat jumped onto the bed.
from	starting point	I came from Paris.
toward(s)	in the direction of	She walked toward the exit.
through	from one side to another	We drove through the tunnel.

Common Preposition Collocations

Some prepositions are fixed with certain words and must be memorized:

Expression	Correct Preposition
interested in	She is interested in history.
good at	He is good at math.
depend on	It depends on the weather.
arrive at (small place) / in (city/country)	arrive at the station / arrive in Tokyo
married to	She is married to a doctor.
afraid of	He is afraid of spiders.

Common Errors

1. In vs. at for locations: ❌ I arrived at Japan → ✅ I arrived in Japan
2. On vs. in for vehicles: in a car/taxi but on a bus/train/plane
3. Missing preposition with “home”: ❌ She went to home → ✅ She went home (no preposition needed)

Key Checklist

• I can correctly use in, on, and at for time and place.
• I understand direction prepositions and how they differ from location prepositions.
• I have memorized the most common fixed preposition collocations.