べらぼうじゃなかったです
箆棒じゃなかったです
berabōjanakattadesu

Noun
Desu Copula
na-Adjective

The polite, past negative form of べらぼう

1. Wasn't good.; Wasn't skillful.; Wasn't up to par.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana