たい細胞 さいぼう分裂 ぶんれつじゃなかったです
taisaibōbunretsujanakattadesu

Noun
Desu Copula

The polite, past negative form of 体細胞分裂

1. Was not mitosis.; Wasn't cell division.

Past/Perfective
Negative
Polite
Casual Register