愚兄 ぐけい賢弟 けんていではありませんでした
gukeikenteidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 愚兄賢弟

1. Was not a wise older brother.; Was not a virtuous younger brother.

Past/Perfective
Negative
Polite
Formal Register