瞬間 しゅんかん湯沸 ゆわかし じゃありませんでした
shunkan yuwakashikijārimasendeshita

Noun
Desu Copula

The polite, past negative form of 瞬間湯沸かし器

1. Was not an instant water heater.; Was not a flash boiler.

Past/Perfective
Negative
Polite
Terminal Form