持続 じぞく陰性 いんせい りつじゃなかったです
ji zoku inseika ritsujanakattadesu

Noun
Desu Copula

The polite, past negative form of 持続陰性化率

1. Wasn't the sustained positivity rate.; Wasn't the rate of sustained negative results.

Past/Perfective
Negative
Polite
Casual Register