あかうそじゃありませんでした
赤鷽じゃありませんでした
akausojārimasendeshita

Noun
Desu Copula

The polite, past negative form of あかうそ

1. It was not a red-billed leiothrix.; It wasn't a red-billed leiothrix.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana