فَسَوْفَ يَدْعُوا۟ ثُبُورًۭا
Sentence structure
فَ begins the result and سَوْفَ marks the future. يَدْعُوا۟ is a third-person masculine-singular imperfect with understood هُوَ as subject; its final wāw belongs to the root, not to a plural suffix. ثُبُورًا is its object.
Ayah summary
From fear of the punishment, that person will cry out for death.
فَسَوْفَ — Then soon
Grammar: فَ begins the result and سَوْفَ is a future particle.
يَدْعُوا۟ — he will call
Grammar: A third-person masculine-singular imperfect with understood هُوَ as subject. The final wāw is the root-final weak letter, and the following alif is orthographic; it is not wāw al-jamāʿah.
ثُبُورًۭا — (for) destruction
Grammar: An indefinite accusative verbal noun functioning as the object of يَدْعُوا۟.