ExpressionGrammatical pointithnatān wa-arbaʿūncompound number followed by tamyīz ḥalūbatantastabīkaimperfect verb with object suffix -kaka-anna fārataka-anna followed by its accusative nounrawḍatan unufanaccusative noun and adjectivelam yataṣarramimperfect made jussive by lamgharidan / harijancircumstantial descriptions of the fly
Case endings are linked to meaning. For example, identifying gharidan as a ḥāl explains why the line describes a momentary mode of sound, not merely the fly’s name.