五十 ごじゅう にち しゅくじゃないです
gojūnichino shukujanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 五十日の祝

1. It's not the fiftieth-day celebration.; It's not a fiftieth-day festival.

Negative
Polite
Casual Register