ドーナツ 現象 げんしょうじゃありませんでした
dōnatsukagen shōja arimasendeshita

Noun
Desu Copula

The polite, past negative form of ドーナツ化現象

1. It wasn't donut-ization.; It wasn't becoming like a donut.

Past/Perfective
Negative
Polite
Terminal Form