おううなぎじゃなかったです
大鰻じゃなかったです
ō unagijanakattadesu

Noun
Desu Copula

The polite, past negative form of おおうなぎ

1. Wasn't a large eel.; Wasn't a big eel.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana