随伴 ずいはん現象 げんしょう せつじゃなかったです
zuihangenshōsetsujanakattadesu

Noun
Desu Copula

The polite, past negative form of 随伴現象説

1. Wasn't an accompanying phenomenon theory.; Wasn't the accompanying phenomenon explanation.

Past/Perfective
Negative
Polite
Casual Register