電気 でんき給湯 きゅうとう ではありませんでした
denkikyūto ukidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 電気給湯器

1. Was not an electric water heater.; It was not an electric water heater.

Past/Perfective
Negative
Polite
Formal Register