にわぜきしょうじゃなかったです
庭石菖じゃなかったです
niwazekishōjanakattadesu

Noun
Desu Copula

The polite, past negative form of にわぜきしょう

1. Wasn't a garden stone/rock.; Wasn't iris.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana