飽和 ほうわ結合 けつごうじゃありませんでした
fuhōwaketsugōjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 不飽和結合

1. Was not unsaturated.; Was not an unsaturated bond.

Past/Perfective
Negative
Polite
Terminal Form