AT – IN – ON

we use at:

  • in the expressions:

look at these guys at shcool/college, at work, at the top of sth, at the bottom of sth, etc.

  • with addressses when we mention the house number. buy priligy usa at 15 heslington street, but on heslington street.

we use in:

  • in the expressions:

in the middle, in the air, in the sky, in bed, in the hospital, in prison, in a newpaper/magazine/book.

in the picture, in a street, in the world.

  • with the names of cities, countries, and continents: in boston, in mexico, in america, in autralia.

we use on:

  • in the expressions:

on the left/right, on the first/second/etc. floor, on chair but in armchair.

 

they can also be used in prepositions of time

 

we use at:

example:

time: at 6 o clock, at eight thirty, etc.

expressions: at noon, at daybreak, at the moment, etc.

 

we use in:

example:

months: in june, in august, etc.

seasons: in the summer/fall etc.

years: in 2000, in 1997, etc.

expressions: in the afternoon/evening etc.

 

we use on:

example:

days: on monday/tuesday etc.

dates: on may 26th, on the 31 st of october,etc.

holidays: on new year`s day, on thanksgiving, etc.

expressions: on the weekend, on a weekday,etc.

 

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