鞍掛 くらかけ もん かくではありませんでした
kurakake mon kakudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 鞍掛紋殻

1. Was not a saddle-patterned carapace.; Was not an ornamented shell.

Past/Perfective
Negative
Polite
Formal Register