万葉 まんよう調 ちょうではありませんでした
man'yōchōdewa arimasendeshita

Noun
Desu Copula

The polite, past negative form of 万葉調

1. Was not in Manyoshu style.; Was not in the style of Manyoshu.

Past/Perfective
Negative
Polite
Formal Register