ほうらいしだじゃなかったです
蓬莱羊歯じゃなかったです
hōraishidajanakattadesu

Noun
Desu Copula

The polite, past negative form of ほうらいしだ

1. It wasn't a bracken.; It wasn't from Mount Penglai.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana