How can we use these little words correctly?

Prepositions are used in many different ways in English – perhaps that’s why a lot of people have problems with them.

First, they are used with time words :

  • on Monday
  • in the 20th century
  • at night

Second, they are used to show where something or someone is:

  • The plate is on the table.
  • Julie is in the garden.
  • The picture is on the wall.