- in + tháng/ năm/ mùa/ buổi trong ngày (không dùng cho “night”)/ địa danh

Ex: in July, in 1996, in summer, in the morning, in Hanoi,…

- on + thứ/ thứ+ ngày+ tháng/ ngày+ tháng/ thứ+ ngày+ tháng+năm/ các buổi trong tuần/ street/ floor

Ex: on Sunday; on Tuesday, Otober 10th 2008; on November 14th; on Monday morning, on street, on floor,…

- at + night/ giờ/ weeken/ địa chỉ cụ thể

Ex: at night, at 12.00, at weeken, at 77 Chu Van An Street, at 8 Hamlet,..

Prepositions of Time: at, on, and in We use at to designate specific times.

The train is due at 12:15 p.m.

We use on to designate days and dates.

My brother is coming on Monday.

We’re having a party on the Fourth of July.

We use in for nonspecific times during a day, a month, a season, or a year.

She likes to jog in the morning.

It’s too cold in winter to run outside.

He started the job in 1971.

He’s going to quit in August.

Prepositions of Place: at, on, and in

We use at for specific addresses.

Grammar English lives at 55 Boretz Road in Durham.

We use on to designate names of streets, avenues, etc.

Her house is on Boretz Road.

And we use in for the names of land-areas (towns, counties, states, countries, and continents).

She lives in Durham. Durham is in Windham County.

Windham County is in Connecticut.

IN

(the) bed*

the bedroom

the car

(the) class*

the library*

school*

AT

class*

home

the library*

the office

school*

work

ON

the bed*

the ceiling

the floor

the horse

the plane

the train

NO PREPOSITION

downstairs

downtown

inside

outside

upstairs

uptown

* You may sometimes use different prepositions for these locations