abstract: This thesis offers a contrastive analysis of the causative alternation phenomenon in English and Standard Arabic variety. This phenomenon has received a lot of attention in the literature on argument structure. It has traditionally been presented in terms of the causativization of inchoative verbs/unaccusatives. It is argued here that this analysis conflicts with the way the causative alternation is molded in Arabic. Causative alternation in Arabic is not only limited to inchoative verbs, but it incorporates unergative verbs as well, which play a vital role in this alternation. The implication of this observation is that the different syntactic behaviors between English and Arabic may reflect people’s different perception of events and lead to different syntactic computation. Therefore, this thesis highlights the role of this subset of intransitives/anti-causatives in the Arabic causative alternation and answers one of the highly considered questions on the causative alternation; that is, which version of the alternation is the lexical base, and which one is derived? This thesis also reveals that there is some significant difference between English and Arabic in terms of the alternatability of unaccusative verbs. Therefore, this study shows that most of the Arabic unaccusative verbs, except denominal verbs, have a causative alternant. This thesis also addresses the vital role of the Arabic verbal template in clarifying this phenomenon. In sum, this thesis provides an overview of the semantic, syntactic, and morphological properties of Arabic verbs undergoing the causative alternation. Besides employing the researcher’s native-speaker intuition, the English/Arabic Lexicon Dictionary and Arabicorpora are consulted to support the validity of the argument. / Dissertation/Thesis / Masters Thesis English 2015