細胞 さいぼう生物 せいぶつじゃありませんでした
tasaibōsei butsuja arimasendeshita

Noun
Desu Copula

The polite, past negative form of 多細胞生物

1. Was not a multicellular organism.; Was not a multicellular lifeform.

Past/Perfective
Negative
Polite
Terminal Form