悪戯 いたずら坊主 ぼうずじゃなかったです
itazurabōzujanakattadesu

Noun
Desu Copula

The polite, past negative form of 悪戯坊主

1. Wasn't a mischievous child.; Wasn't a rascal.

Past/Perfective
Negative
Polite
Casual Register