にしんそばじゃなかったです
鰊蕎麦じゃなかったです
nishinsobajanakattadesu

Noun
Desu Copula

The polite, past negative form of にしんそば

1. Wasn't buckwheat noodles.; Wasn't haddock soba.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana