貝殻 かいがら じょう くちではありませんでした
kaigarajōware kuchidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 貝殻状割れ口

1. Was not a shell-like fracture.; Was not a shell-shaped break.

Past/Perfective
Negative
Polite
Formal Register