The document discusses the four main modes of composition in English: description, narration, exposition, and argumentation. Description involves portraying people, places, or objects with details. Narration tells personal stories or accounts of events with a beginning, middle, and end. Exposition explains people, places, things, or events by providing factual documentation and interpretations. Argumentation presents both sides of an argument using logic and reasoning to persuade a stance. Mastering these four modes provides writers a structured approach to English composition.