いぼにしじゃなかったです
疣螺じゃなかったです
ibonishijanakattadesu

Noun
Desu Copula

The polite, past negative form of いぼにし

1. It wasn't a warasabi.; It wasn't a turban snail.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana