あまこぶねかいじゃありませんでした
蜑小舟貝じゃありませんでした
amakobunekaijārimasendeshita

Noun
Desu Copula

The polite, past negative form of あまおぶねがい

1. Was not a small fishing boat.; Was not a houseboat.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana