くりいろこがもでわありませんでした
栗色小鴨ではありませんでした
kuriirokogamodewārimasendeshita

Noun
Desu Copula

The polite, past negative form of くりいろこがも

1. Was not a chestnut duck.; Was not a reddish-brown duck.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana