This article analyzes the theoretical and practical aspects of mubtada and khabar, the central components of the jumlah ismiyya in Arabic syntax. The study discusses their definitions, grammatical features, agreement rules, cases of omission, and exceptional usages. The application of defective verbs (af‘āl nāqiṣa) in relation to these elements is also examined. Based on classical sources of Arabic grammar (nahw), the article provides explanations supported by examples to illustrate their practical functions. This research contributes to a deeper understanding of Arabic syntax and the role of mubtadа and khabar within it.
T. M. Inbamalar (Mon,) studied this question.