Vertical and horizontal analysis of the linguistic structure in the book (Contemporary Explanation of the Book of Sibawayh) by Dr. Hadi Nahar

Grammatical analysis in Arabic grammar is based on two basic pillars. The first pillar is the syntactic analysis of grammatical structures, and the second is linear analysis, which is represented by the vertical and horizontal lines of the structure. The book (Contemporary Explanation of Sibawayhs Book) by Dr. Hadi Nahar is one of the books that focused on two focuses in analyzing grammatical structures. In this study, we have shed light on the linear analysis - vertical and horizontal - in it. Linear analysis means looking at what is done in the structure vertically and horizontally. Vertical manipulation is by replacing a linguistic element in the structure with another that is brought from outside the speech event. As for horizontal manipulation, it is by looking at the linguistic mechanisms that occur in the structure, such as presenting, delaying, deleting some elements in it, separating two elements, and so on. Therefore, the study here is divided into two sections. In the first section, we dealt with vertical manipulation in the structure and its role in grammatical analysis. In the second section, we dealt with horizontal manipulation and what it includes of linguistic techniques of presenting, delaying, deleting, and separating two things. The aim of the study is to clarify the analytical foundations in Arabic grammar in general and in (Contemporary Explanation) in particular.