嫌気 いやけ せい細菌 さいきんじゃなかったです
iyakeseisa ikinja nakattadesu

Noun
Desu Copula

The polite, past negative form of 嫌気性細菌

1. Wasn't anaerobic bacteria.; Wasn't an anaerobic bacterium.

Past/Perfective
Negative
Polite
Casual Register