The document identifies five types of phrases: prepositional phrases, appositive phrases, participial phrases, gerund phrases, and infinitive phrases. It provides examples and explanations of each type of phrase, including how they function within sentences. Prepositional phrases can function as adjectives or adverbs, appositive phrases identify or explain nouns, participial phrases modify nouns as adjectives, gerund phrases can serve as nouns, and infinitive phrases can be used as nouns, adjectives, or adverbs. The document concludes by analyzing phrases within an example paragraph and identifying the type of each phrase and its function.