腹式 ふくしき呼吸 こきゅうじゃなかったです
fukushikikokyūjanakattadesu

Noun
Desu Copula

The polite, past negative form of 腹式呼吸

1. Wasn't diaphragmatic breathing.; Didn't do diaphragmatic breathing.

Past/Perfective
Negative
Polite
Casual Register