だこせんでわありませんでした
蛸船ではありませんでした
dakosendewārimasendeshita

Noun
Desu Copula

The polite, past negative form of たこぶね

1. Was not a cuttlefish boat.; Was not an octopus boat.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana