がんぎじゃなかったです
雁木鱝じゃなかったです
gangi janakattadesu

Noun
Desu Copula

The polite, past negative form of がんぎえい

1. Wasn't a wild goose.; Wasn't a swift current.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana