Prepositions show the position of something or when something happened
He sat on the chair.
There is some milk in the fridge.
She was hiding under the table.
My car is parked in front of the mailbox.
at
on
in
under
at
on
in
during
before
trought
past
into
over
across
are made from two or more word :
next to
along with
away from
in front of