いそまぐろでわありません
磯鮪ではありません
isomagurodewārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of いそまぐろ

1. It is not ishi-maguro.; It is not a type of tuna.

Negative
Polite
Formal Register
Usually Written in Kana