First declension! XD I'll use villa, country house, to demonstrate.

Singular~
Nominative: villa
Genitive: villae
Daitive: villae
Accusative: villam
Abblative: villa (long a!)

Plural~
Nominative: villae
Genitive: villarum
Daitive: villis (long i!)
Accusative: villas (long a!)
Abblative: villis (long i!)

I'd be grateful if somebody could type up a long a and a long i. ^_^