あかいわしじゃなかったです
赤鰯じゃなかったです
akaiwashijanakattadesu

Noun
Desu Copula

The polite, past negative form of あかいわし

1. Wasn't reddish bream.; Wasn't horse mackerel.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana