春秋 はるあき筆法 ひっぽうではありませんでした
haru akino hippo udewa arimasendeshita

Noun
Desu Copula

The polite, past negative form of 春秋の筆法

1. It was not the style of spring and autumn.; It wasn't written in the spring and autumn annals style.

Past/Perfective
Negative
Polite
Formal Register