地震 じしん前兆 ぜんちょう現象 げんしょうじゃなかったです
jishinzenchōgenshōjanakattadesu

Noun
Desu Copula

The polite, past negative form of 地震前兆現象

1. Wasn't a pre-earthquake anomaly.; Wasn't an earthquake precursor phenomenon.

Past/Perfective
Negative
Polite
Casual Register