ちょう音波 おんぱ洗浄 せんじょうじゃなかったです
chōon pa senjōjanakattadesu

Noun
Desu Copula

The polite, past negative form of 超音波洗浄

1. Wasn't ultrasonic cleaning.; Wasn't using ultrasonic cleaning.

Past/Perfective
Negative
Polite
Casual Register