Introduction

English is one of the most important languages in the world, not only because it is the language of large countries such as England or the United States, but it is also a language adapted to business and more importantly.

Prepositions in English are invariable words or groups of words that are used to indicate a place, movement, direction or time. Some prepositions can have more than one use such as in, on, and at. Prepositions have various peculiarities that make them very important in English. For example, there are words that can be used as a preposition or conjunction (such as after or until), or as a preposition or adverb (inside and outside are clear examples).

The definition, uses, characteristics, types and functions of prepositions in English will be presented below.