The document discusses different types of phrases in English grammar. There are two main types: noun phrases and adjective phrases. A noun phrase is a group of words that acts as a subject, object, or complement and includes modifiers and determiners. An adjective phrase is a group of words that describes or modifies a noun or pronoun, consisting of an adjective and any additional modifiers. Common examples of phrases are provided such as "a blue shirt" and "the big red apples."