くさびふぐでわありませんでした
楔河豚ではありませんでした
kusabifugudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of くさびふぐ

1. Was not a pufferfish.; Was not a wedge puffer.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana