Definition of Preposition
Preposition is a word that governs nouns or pronouns usually placed in front of, expressing a relation to another word or element.
Simple rule
A preposition is followed by a noun. It is never followed by a verb.
Preposition of Time (at, in, on)
AT
|
IN
|
ON
|
Precise Time
|
Months, Years,
Centuries and Long Periods
|
Days and Dates
|
at 4 o’clock
|
in December
|
on Sunday
|
at 4.30 am
|
in spring
|
on Tuesdays
|
at midday
|
in the winter
|
on 4 December
|
at lunchtime
|
in 1963
|
on 21 Nov. 1962
|
at mealtime
|
in the 1970s
|
on New Year’s Day
|
at sunset
|
in this century
|
on Independence Day
|
at sunrise
|
in the Ice Age
|
on my birthday
|
at the moment
|
in the past/future
|
on New Year’s Eve
|
at night
|
in the evening(s)
|
on Monday morning(s)
|
 |
| Source |
