レアチーズケーキじゃありませんでした
rea chiizukēkijārimasendeshita

Noun
Desu Copula

The polite, past negative form of レアチーズケーキ

1. It wasn't a rare cheesecake.; It wasn't cheesecake (of the rare variety).

Past/Perfective
Negative
Polite
Terminal Form