PREPOSITION

A preposition is a word governing, and usually coming in front of, a noun or pronoun and expressing a relation to another word or element.

A preposition sits in front of (is “pre-positioned” before) its object.

There are 2 types of preposition:     

              a)  Preposition of position or direction:  

• There is a sidewalk above the hill.
• Amin stands beside Diane.

              

              b) Preposition of time.

•  She left before breakfast
• They lived there since 1998.