わらいたけじゃなかったです
笑い茸じゃなかったです
waraitakejanakattadesu

Noun
Desu Copula

The polite, past negative form of わらいたけ

1. Wasn't laughing.; Wasn't a mushroom.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana