A preposition is a word or word phrase that shows the relationship between a noun or pronoun and other words in a sentence. Prepositions indicate location, direction, or time. Common prepositions include about, above, across, after, below, along, among, before, beneath, behind, beside, between, beyond, by, down, during, for, from, in, inside, into, like, near, of, off, on, outside, over, past, since, through, to, toward, under, until, up, and upon. A prepositional phrase starts with a preposition and ends with an object, with no verbs in between.