だいおういかじゃありませんでした
大王烏賊じゃありませんでした
daiō ikajārimasendeshita

Noun
Desu Copula

The polite, past negative form of だいおういか

1. Was not a giant squid.; Was not the giant squid.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana