子供 こども部屋 へや 使用 しようおばさんじゃありませんでした
kodomoe yamishiyō obasanjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 子供部屋未使用おばさん

1. Was not an unused children's room aunt.; Was not a woman who hadn't used the children's room.

Past/Perfective
Negative
Polite
Terminal Form