كَلَّا لَئِن لَّمْ يَنتَهِ لَنَسْفَعًۢا بِٱلنَّاصِيَةِ ۝١٥ What does لَمْ do to يَنتَهِ?

Surah Al-‘Alaq — Part 2

• Makes it nominative
• Makes it accusative
• Makes it jussive
• Makes it imperative