かわずあんこうでわありませんでした
蝦蟇鮟鱇ではありませんでした
kawazuankōdewa arimasendeshita

Noun
Desu Copula

The polite, past negative form of がまあんこう

1. Was not a toadfish.; Was not a monkfish.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana