二十 にじゅう いち だい しゅうじゃありませんでした
nijū ichidaishūjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 二十一代集

1. Was not the 21st generation.; Was not of the 21st generation.

Past/Perfective
Negative
Polite
Terminal Form