横穴 よこあな しき石室 せきしつじゃありませんでした
yokoanashikisekishitsujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 横穴式石室

1. It was not a horizontal chamber tomb.; It wasn't a horizontal stone chamber.

Past/Perfective
Negative
Polite
Terminal Form