佐渡 さど土竜 もぐらではありませんでした
sa domoguradewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 佐渡土竜

1. Was not a Sado earthworm.; Was not a Sado dragon.

Past/Perfective
Negative
Polite
Formal Register