極限 きょくげん環境 かんきょう 生物 せいぶつではありませんでした
kyokugenkan kyō biseibutsudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 極限環境微生物

1. Was not an extremophile.; Was not an extreme environment microbe.

Past/Perfective
Negative
Polite
Formal Register