A phrase is a group of related words that function as a single part of 1). it does not ahave a subject and a 2) . A prepositional phrase begins with a preposition and ends with noun or pronoun called the object of the 3). another type of phrase which is used to modify a noun or pronoun and it is called a 4). an adverb phrase is a prepositional phrase that is used to modify a verb, an adjective, or another 5).