Functional grammar is an approach to grammatical analysis that views language structure as shaped by the communicative functions it serves and examines grammatical organization in relation to semantic, pragmatic, and contextual factors ^[1]. It treats linguistic expressions as structured resources for conveying meaning within social interaction rather than as autonomous formal systems, and it analyzes grammatical units through their roles in processes, participants, information organization, and discourse contexts ^[1][2]. Functional grammar is distinct from purely formal approaches that primarily characterize grammar through abstract syntactic rules independent of communicative use, although it may incorporate formal descriptions of linguistic structure as part of a broader functional analysis ^[2].