Questions & Answers about Kosa la bili limeonekana.
La is the of-linker that agrees with the noun class of kosa.
Kosa is a class 5 noun, so the linker is la.
So:
- kosa la bili = error of the bill / billing error
If it were plural, the linker would change:
- makosa ya bili = bill errors
So the choice of la is about noun class agreement, not about gender.
The li- is the subject marker on the verb, and it agrees with kosa.
In Swahili, verbs usually show agreement with the subject. Since kosa is a class 5 noun, the verb takes li-:
- kosa ... li-meonekana
If the subject were plural makosa, the verb would change too:
- makosa ... ya-meonekana
So li- is basically the verb’s way of saying it, specifically for a class 5 noun.