The part of speech indicates how the word functions in meaning as well as grammatically within the sentence. An individual word can function as more than one part of speech when used in different circumstances.
Prepositions are an important part of the English grammar. The definition of a preposition is a word that shows a relation to another word. It can be divided into simple prepositions and phrasal prepositions. Those are two commonly used prepositions. Here are some examples of prepositions and also some key points or we can say rules to remember about prepositions.