ぜきしょうじゃなかったです
石菖じゃなかったです
zekishōjanakattadesu

Noun
Desu Copula

The polite, past negative form of せきしょう

1. Wasn't Acorus calamus.; Wasn't sweet flag.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana