Grammar Rules _ Speak Good English Movement

The preposition is placed before a noun or pronoun. It
shows the relationship between nouns and pronouns in
the same sentence. It may be used to indicate position,
place, direction or time.
Prepositions of Position
With regard to place, in tends to be used with larger
or enclosed areas such as cities, countries and tunnels,
whereas at tends to be used for smaller places, points on a
journey, or for activities typically associated with a place.
E.g.
• The couple will spend their money in London.
(large area)
• Their train stops at London Paddington.
(point on a journey)
• The boys are running around in the library.
(enclosed area)
• They boys are at the library, reading.
(reading is associated with libraries)
When talking about heights or levels, you use below,
over or under.
E.g.
• The dog is sleeping under the bed.
• The plane flew over the hills.
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