とうぞくかもめでわありませんでした
盗賊鴎ではありませんでした
tōzokukamo medewārimasendeshita

Noun
Desu Copula

The polite, past negative form of とうぞくかもめ

1. Was not a thief seagull.; Was not a robber seagull.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana