竜宮 りゅうぐう使 つかいではありませんでした
ryūgūno tsukaidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 竜宮の使い

1. Was not an envoy of the Dragon Palace.; Was not a messenger from Ryūgū-jō.

Past/Perfective
Negative
Polite
Formal Register