さい奇形 きけい物質 ぶっしつではありませんでした
saikikeibusshitsudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 催奇形物質

1. Was not a catalyst.; Was not an odd-shaped substance.

Past/Perfective
Negative
Polite
Formal Register