理論 りろん生物 せいぶつ がくじゃありませんでした
rironseibutsuga kuja arimasendeshita

Noun
Desu Copula

The polite, past negative form of 理論生物学

1. Was not theoretical biology.; Wasn't a theoretical biologist.

Past/Perfective
Negative
Polite
Terminal Form
Biology