This research has been written under the title: The Grammatical Case in Kurdish and Arabic Languages: A Comparative Study. The research aims to identify points of similarities and differences between the grammatical case in Standard Arabic and Kurdish language (Sorani dialect/Sulaymaniyah subdialect).
 The importance of the research lies in its usage - for the first time – of the modern transformational generative theory to compare Kurdish and Arabic languages. The research – with excluding the summary and introduction - consists of two axes: The first axis talks about the principles of the grammatical case model. As for the second axis deals with grammatical case patterns and their application in the two mentioned languages.
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