細胞 さいぼう生物 せいぶつ がくじゃありませんでした
saibōseibutsuga kuja arimasendeshita

Noun
Desu Copula

The polite, past negative form of 細胞生物学

1. Was not cell biology.; It wasn't cell biology.

Past/Perfective
Negative
Polite
Terminal Form