20 Prepositional phrases - Adjective and adverb phrases PREPOSITIONAL PHRASES – ADJECTIVE AND ADVERB PHRASES Definition: A prepositional phrase is a group of words that begins with a preposition and ends with a noun or pronoun. The noun or pronoun in the phrase is called the object of the preposition. Example: Koala bears are found in Australia. (In Australia is a prepositional phrase. Australia is the object of the preposition in.) The two kinds of prepositional phrases: adjective and adverb. Definition: An adjective phrase modifies a noun or pronoun. Example: Ballet dancers from Mexico will perform. (From Mexico is an adjective Prepositional phrase modifying dancers.) Definition: An adverb phrase modifies a verb, an adjective, or another adverb. Example: Ballet dancers from Mexico will perform at the Opera House. (At the Opera House is an adverb prepositional phrase modifying will perform.)