どてらじゃありませんでした
褞袍じゃありませんでした
doterajārimasendeshita

Noun
Desu Copula

The polite, past negative form of どてら

1. Was not wearing a ceremonial robe.; Was not dressed in formal attire.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana