Morphosyntactic variation refers to differences in morphological forms and syntactic structures used to express grammatical relationships across speakers, dialects, languages, or linguistic contexts [1]. It encompasses variation in grammatical features such as agreement, case marking, tense, aspect, number, and word order, as well as differences in how these features are realized and combined within phrases and sentences [2]. In sociolinguistics, morphosyntactic variation is examined in relation to social and contextual factors, while theoretical and comparative approaches investigate its structural patterns and grammatical constraints [1][3].