فَجَعَلَهُمْ كَعَصْفٍ مَّأْكُولٍۭ ٥
Sentence structure
فَ links the result and جَعَلَ is a perfect verb with attached object هُمْ. كَعَصْفٍۢ is a comparative prepositional phrase, and مَّأْكُولٍۭ is a genitive passive-participle adjective of عَصْفٍۢ.
Ayah summary
Allah reduced them to scattered, eaten straw.
فَجَعَلَهُمْ — so He made them
Grammar: فَ links the result; جَعَلَ is a third-person masculine-singular perfect whose subject is the hidden pronoun «هُوَ», and attached هُمْ is its first object.
كَعَصْفٍۢ — like eaten straw
Grammar: Comparative preposition كَ governs عَصْفٍۢ; the phrase is linked to the omitted second object of جَعَلَ.
مَّأْكُولٍۭ — eaten
Grammar: An indefinite masculine genitive Form I passive participle adjective of عَصْفٍۢ.