The first one is to write outline. Outlining is simply a step we use help us organize our thoughts. How to write good paragraph must have one topic sentences, supporting sentences and concluding sentences. The two main elements of a topic sentence are the main subject and a controlling ides. Four features of a well-written paragraph. The first one a paragraph has a topic sentence that states the main idea. The second one all of the sentences are about one topic. The third one the first sentence of a paragraph is indented. The final sequence the last sentence or concluding sentence brings the paragraph to a logical conclusion.