Kaʾanna is both a comparison tool and one of the particles governing an accusative subject and a nominative predicate. Rhetorically, it presents something as though it were another thing.
With a noun predicate the comparison is particularly explicit, e.g. “Kaʾanna al-wajha qamarun” (“It is as if the face were a moon”). Here the face is the subject and the moon the model; “Al-wajha” is accusative as the particle’s subject and “qamarun” is nominative as its predicate.
Opening interactive controls...
Ilm al-Bayan and Simile: Definition, Elements, Terms and Particles
Kaʾanna is both a comparison tool and one of the particles governing an accusative subject and a nominative predicate. Rhetorically, it presents something as though it were another thing.
With a noun predicate the comparison is particularly explicit, e.g. “Kaʾanna al-wajha qamarun” (“It is as if the face were a moon”). Here the face is the subject and the moon the model; “Al-wajha” is accusative as the particle’s subject and “qamarun” is nominative as its predicate.