婚外 こんがい交渉 こうしょうではありませんでした
kon gai kōshōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 婚外交渉

1. Was not involved in an affair.; Was not having an extramarital relationship.

Past/Perfective
Negative
Polite
Formal Register