蒟蒻 ごんにゃく ぼんではありませんでした
gonnya kubondewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 蒟蒻本

1. Was not a konnyaku book.; Was not a beginner's book.

Past/Perfective
Negative
Polite
Formal Register