床板 ゆかいた珊瑚 さんご るいじゃありませんでした
yukaita sango ruijārimasendeshita

Noun
Desu Copula

The polite, past negative form of 床板珊瑚類

1. Was not a type of plate coral.; Was not coral with plate-like structures.

Past/Perfective
Negative
Polite
Terminal Form