Prepositions

Prepositions link words and phrases in a sentence to other words and phrases. They show the relationship between them and often (though not always) indicate if the relationship is to do with location or with time.  

Prepositions about location (place) include:

on, in, under, over, above, between, among, beneath, against, towards, beside, across, off, on, within

Prepositions about time include:

during, before, after, throughout, since

Other prepositions include:

for, of, except

You will see that the same words may be prepositions or connectives. You can tell if the word is a preposition because it will come before a noun, whereas a subordinating connective introduces a subordinate clause.

The book was on the table.

The pupils were in the library.

He knew he was among friends and so he spoke freely.

Note about between and among

'Between' is used for two things/people and 'among' for more than two things/people.