How should the preposed lanā be treated in 92:13?

Supplementary Practice 27 — Comparative Rhetoric of Sūrat al-Shams and Sūrat al-Layl

• Treat the genitive as a subject and delete inna
• Lanā is an oath particle
• Preposing necessarily negates existence
• Foregrounded possession and association; preposing does not automatically prove one fixed type of restriction