1. Absolute object — emphasis, manner or number.
2. Direct object — receives an action.
3. Adverbial object — time or place.
4. Purpose object — reason or purpose.
5. Comitative object — accompanying entity.
6. Ḥāl — attendant state.
7. Tamyīz — clarifies an ambiguity.
8. Exception.
9. Predicate of kāna.
10. Ism of inna.
11. Accusative ism under generic lā.
12. Predicate under mā/lā resembling laysa.
These follow the source enumeration. Not every accusative must show a visible fatḥa.