Case roles represent deep structure relations between noun phrases and the verb in a given proposition. Case roles, therefore, are not concerned with the traditional grammatical case that is related to inflectional forms designating the nominative, accusative, genitive, etc. While inflections (ʿalāmāt al-ʾiʿrāb) express surface cases, are related to surface structure, and are grammatical in nature, case roles express semantic relations or functions, are deep structure relations, and are semantic in nature. In other words, lexical relati…