盗賊 とうぞく かもめではありませんでした
tōzokukamo medewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 盗賊鴎

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

Past/Perfective
Negative
Polite
Formal Register