Grammar: Preposition

_Grammar_

*PLACE*
/
*AT/ON/IN*
\
*TIME*

*PREPOSITIONS OF PLACE*

```We use "at" for a point:```

* At the airport
* at a party
* at the end of the street
* at the top of the page

```We use "on" for vertical or horizontal surfaces:```

* on the desk
* on the wall
* on the ceiling
* on the floor

```We use "in" for an enclosed space:```

* in London
* in the room
* in the river
* in the newspaper
* in a bottle

*PREPOSITIONS OF TIME*

*AT*

```1. FOR WEEKEND (British English)```
*At the weekend

```2. PART OF THE DAY```
*At night

```3. SPECIFIC TIMES```
*At six
*At half past seven
*At lunch time

```4. CELEBRATIONS```
*At Christmas
*At easter

*ON*

```1. FOR WEEKEND (American English)```
*on the weekend

```2. SPECIFIC DAYS AND DATES.```
*on Monday
*on Saturday
*on the third of January

```3. SPECIAL DAYS```
*on Christmas day
*on my birthday
*on New Year's Eve

*IN*

```1. MONTHS```.
*in January
*in April

```2. YEAR```
*in 1896
*in 2018

```3. SEASONS```
*in (the) spring
*in summer

```4. PART OF THE DAY```
*in the morning
*in the afternoon

```5. PERIOD OF TIME```
*in five hours
*in three weeks
*in a minute