前方 ぜんぽう 円墳 えんふんではありませんでした
zempō goen fundewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 前方後円墳

1. It was not a keyhole-shaped burial mound.; It wasn't a keyhole-shaped tomb.

Past/Perfective
Negative
Polite
Formal Register
Archeology