こけむしるいでわありませんでした
苔虫類ではありませんでした
kokemushiruidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of こけむしるい

1. Was not a bryozoan.; Was not of the bryozoan class.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana