after I watched the video, in short, the narrative paragraph tells a story. Something happened first, second, third, etc. You can only tell one topic and explain it using conjunctions. Topic sentence is a sentence that states the main idea (main idea) of a paragraph. This sentence is the most general sentence in the paragraph. There is not much detail in the topic sentence, but this sentence is able to introduce the whole idea to be discussed later in the paragraph. Topic sentence is located at the beginning of a paragraph. Supporting sentence (or body sentence) is a sentence that supports or develops an idea expressed by a topic sentence in a paragraph.