Here is a diagram that illustrates the knowledge about discourse, grammar, and syntax. As for the syntax, a unit will be defined as any sequence that constitutes a semantic whole and which has a recognized pattern that is repeated regularly in speech and writing. The sentence is the term traditionally used to denote the highest grammatical unit on a scale of rank. A clause is a unit of grammatical organization, a group of words that in traditional grammar are said to consist of a subject and a predicate. Learn more details from this diagram and try to make yours with ease.