はないかじゃなかったです
花烏賊じゃなかったです
hanaikajanakattadesu

Noun
Desu Copula

The polite, past negative form of はないか

1. Wasn't a firefly squid.; Wasn't a flamboyant cuttlefish.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana