The document discusses the structure of predicates and their components. It defines a predicate as having a verb component, which can be a single verb or a more complex structure centered around a verb. The subject and predicate of a sentence can each be a single word, phrase, or syntactic structure such as modification, complementation, or coordination. The predicate consists of verbs and their properties like person, tense, voice, and modifiers or complements. Complements have a close semantic relationship to the verb, while adjuncts freely modify it.