A formal outline is a structured framework that organizes and presents information in a logical and hierarchical manner. It is used to plan and organize a written document, such as an essay or a research paper. A formal outline typically follows a standardized format, including headings, subheadings, and bullet points, to clearly outline the main ideas and supporting details of the document.A complete sentence is a sentence that contains a subject and a predicate and expresses a complete thought. It can stand alone and convey a clear meaning. For example, "She went to the store."An incomplete sentence, also known as a sentence fragment, is a group of words that does not express a complete thought or lacks a subject or a predicate. It cannot stand alone as a complete sentence. For example, "Running in the park." or "Because of the rain." Incomplete sentences often need additional information to form a complete thought.