The aim of the thesis is to study some aspects of the surface structure of the contemporary Arabic spoken in Mecca, Saudi Arabia. It is concerned mainly with the morphology (sound pattern) of the verb. it proposes a rule-system for the derivation of actual phonetic forms. from abstract, underlying forms. Broadly speaking, the mode of analysis employed here is that of Generative, Phonology as developed by Chomsky, Halle, and others, some of whom are cited in the Bibliography, The thesis consists of two main parts. One part treats the rules of the morphological component; the other treats those of the phonological component. It in assumed that the former part constitutes the input to the latter. As for the morphological component, it contains at least three main oats of rules: those which produce mainly the consonantal bases, the Derivational rules (Chapter XI); those which develop such bases into fully-fledged verb forms, the Inflectional rules (Chapter XII); and those which state the redundant features of the segments before they enter the phonological component, the Redundancy rules (Chapter X). The phonological component consists of the rules that convert the output of the above component into final, surface forms. Chapter I suggests the possibility that the traditional Paradigm can be incorporated in the phonological component of the language to capture some important generalizations, Chapter II, which also introduces the notion of Prominence into the phonological component, and Chapters III-V treat the various types of stems (Strong, Weak, etc) and give the rules that can handle the Subjective Verb. Chapters VI and VII analyses the Objective Verb and the Dative Verb, respectively, Chapter VIII investigates the system of Distinctive Features that arc required in the present analysis. Chapter IX discusses some irregular verbs and their treatment in the light of the previous discussion.