天変 てんぺん 異説 いせつじゃありませんでした
tempenchiisetsujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 天変地異説

1. It wasn't a theory of cataclysmic events.; It wasn't the explanation of natural disasters.

Past/Perfective
Negative
Polite
Terminal Form