Three Structures of Ism Lā

Ism Inna and the Noun Governed by Lā of Generic Negation

1. Muḍāf: «لَا غُلَامَ رَجُلٍ» — accusative ghulāma with genitive rajulin.
2. Quasi-construct: «لَا عِشْرِينَ دِرْهَمًا» — ʿishrīna accusative with yāʾ; dirhaman accusative tamyīz.
3. Single non-construct: «لَا رَجُلَ» — rajula built on fatḥ in the accusative position.

Here “single” means non-construct, not necessarily singular in number.