This document discusses prepositional phrases, adjective phrases, and adverb phrases. Adjective phrases modify nouns and answer questions like "which one" or "what kind". Adverb phrases modify verbs, adjectives, or other adverbs and answer questions like "how", "when", or "to what extent". The document provides examples of these phrases and rules about their position in sentences, noting that adverb phrases can be moved but adjective phrases cannot. It concludes with practice identifying these phrases in sample sentences.