かぎゅうじゃなかったです
蝸牛じゃなかったです
kagyūjanakattadesu

Noun
Desu Copula

The polite, past negative form of かたつむり

1. Was not a snail.; Wasn't a snail.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana