接合 せつごう ぜん隔離 かくりではありませんでした
setsugōzenkakuridewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 接合前隔離

1. Was not isolated before joining.; Was not segregated before connection.

Past/Perfective
Negative
Polite
Formal Register