よろい土竜 もぐら蜚蠊じゃありませんでした
yoroimogurajārimasendeshita

Noun
Desu Copula

The polite, past negative form of 鎧土竜蜚蠊

1. Was not armor, earth dragon, cockroach.

Past/Perfective
Negative
Polite
Terminal Form