蝦夷 えぞ赤蛙 あかがえるじゃありませんでした
ezoakagaerujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 蝦夷赤蛙

1. Was not a Hokkaido frog.; Was not an Ezo red frog.

Past/Perfective
Negative
Polite
Terminal Form