A master's thesis in the Department of Arabic Language at the College of Arts at the University of Basrah examined (Quranic verses smaller than a sentence - a grammatical study). 
The thesis, presented by researcher Haider Habib Lajlaj Jassim, included three chapters (Types of Quranic verses smaller than a sentence, grammatical meanings of Quranic verses smaller than a sentence, and structural characteristics of Quranic verses smaller than a sentence). 
The study aims to define the concept of these verses as well as extrapolating all their types, clarifying their grammatical aspects, analyzing the grammatical meaning that occurs in the structure, as well as clarifying their structural characteristics such as "multiplicity, repetition, and separation" and the resulting effect, in addition to working on organizing them based on the type of their linguistic component. 
The researcher concluded that grammatical categories were able to explain their components of nouns in their various aspects, and this study has expanded the horizon of grammatical research towards studying the patterns of these verses that appear separate in their Quranic drawing, but they are coordinated to the utmost coordination in their semantic dimension with the verses that It precedes it, and its grammatical connotations occupied components that expanded the construction of sentences to encompass the details of the Quranic meanings that match their external context. This study demonstrated the structural characteristics of the Quranic verses that are smaller than the sentence, and the different functions that result from them that the text creator seeks