Choose the correct answer

Which of the following conjugation forms is structurally INVALID and does not occur in this Light-Nun paradigm?

Conjugating the Imperative with Light Noon (Active & Passive)

• اِفْعِلَانْ
• اِفْعِلَنْ
• لِيَفْعِلَنْ
• اِفْعِلُنْ