共有 きょうゆう電子 でんし たいじゃなかったです
hikyōyūden shitaijanakattadesu

Noun
Desu Copula

The polite, past negative form of 非共有電子対

1. Wasn't a non-bonding pair of electrons.; Wasn't a lone pair of electrons.

Past/Perfective
Negative
Polite
Casual Register