がんたれでわありませんでした
雁垂れではありませんでした
gantaredewārimasendeshita

Noun
Desu Copula

The polite, past negative form of がんだれ

1. Was not a wild goose.; Was not hanging down like a wild goose.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana