Sentence diagram

A sentence diagram is a visual representation used to illustrate the grammatical structure of a sentence. It breaks down a sentence into its components, such as subjects, verbs, objects, modifiers, and phrases, and shows how these elements relate to one another. In a typical sentence diagram, the main parts of the sentence are represented by horizontal and vertical lines. For example, the subject typically is placed to the left of a vertical line that separates it from the predicate (the verb and its complements).