ぎんあじでわありませんでした
銀鯵ではありませんでした
gin'ajidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of しろがねあじ

1. Was not silver horse mackerel.; Was not a silver horse mackerel.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana