This is the curriculum's final and most advanced course book in Arabic Morphology. After revising all rules in detail, which govern the law of Arabic Morphology, students learn the various scales of the Arabic verbs (baab). The method through which words are derived from their original pattern is discussed extensively. Memorization through implementation of exercises allows students to recognize the verbal constructions. Upon completion, students are able to differentiate and identify the scale of every verb in the Arabic language.