The document discusses basic sentence patterns in English grammar. It identifies 5 common patterns: subject-linking verb-complement (S-LV-C), subject-transitive verb-direct object (S-TV-DO), subject-intransitive verb (S-IV) or subject-intransitive verb-adverb (S-IV-ADV), subject-transitive verb-indirect object-direct object (S-TV-IO-DO), and subject-transitive verb-direct object-object complement (S-TV-DO-OC). It provides examples for each pattern and asks the reader to write their own examples and identify patterns in given sentences.