1. Cases of Nouns are six: Nominative, Genitive, Dative, Accusative, Vocative, and Ablative. As in the Latin and Greek languages, these cases are derived from the Nominative by certain rules of inflection; the Nominative being the root of all the other cases, is termed the direct case, the others are called oblique cases.

We especially enjoyed the amenity of the climate on our last holiday.

That's Cap'in Blackie! The notorious killah!

I take responsibility for my poor choice; it was my fault.