In this overview, you'll understand how to use prepositions, which are words or groups of words that can show the place, position or time of a noun or pronoun.
In the phrase 'the lamp beside the television', 'beside' is the preposition because it describes the position of the lamp in relation to the television.
English grammar lesson on-line for elementary level students - An explanation of some prepositions of place and time expressions with audio explanation and printable exercises.
English grammar lesson on-line for elementary level students - An explanation of some examples of prepositions with printable exercises.