火山 かざん砕屑 さいせつ きゅうではありませんでした
kazansaisetsu kyūdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 火山砕屑丘

1. Was not a pyroclastic cone.; Was not a volcanic cinder cone.

Past/Perfective
Negative
Polite
Formal Register