嫌気 いやけ せい細菌 さいきんではありませんでした
iyakeseisa ikindewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 嫌気性細菌

1. Was not an anaerobic bacterium.; Was not a facultative anaerobe.

Past/Perfective
Negative
Polite
Formal Register