The document discusses subject-verb word order in sentences. It states that the typical order is for the subject to come before the verb, and provides examples like "Julie likes pizza". However, it notes there are some cases where the verb comes before the subject, such as in questions, question tags, exclamations, and sentences with reporting verbs. The document provides additional examples and explanations of each case of inversion. It concludes with an exercise where readers must identify and correct instances of incorrect word order in sample sentences.