一夫 いっぷ一妻 いっさいではありませんでした
ippuissaidewārimasendeshita

Noun
Desu Copula
no-Adjective

The polite, past negative form of 一夫一妻

1. Was not monogamous.; Was not married to only one person.

Past/Perfective
Negative
Polite
Formal Register