五十 ごじゅう にち しゅくじゃなかったです
gojūnichino shukujanakattadesu

Noun
Desu Copula

The polite, past negative form of 五十日の祝

1. Wasn't the 50-day celebration.; It wasn't a 50-day celebration.

Past/Perfective
Negative
Polite
Casual Register