好熱 こうねつ せい細菌 さいきんじゃなかったです
kōnetsuseisa ikinja nakattadesu

Noun
Desu Copula

The polite, past negative form of 好熱性細菌

1. Wasn't heat-loving bacteria.; Wasn't thermophilic bacteria.

Past/Perfective
Negative
Polite
Casual Register