新旧 しんきゅう交代 こうたいじゃなかったです
shinkyūkōtaijanakattadesu

Noun
Desu Copula

The polite, past negative form of 新旧交代

1. It wasn't a changing of the old and new.; It wasn't a succession.

Past/Perfective
Negative
Polite
Casual Register