鼓膜 こまく張筋 ちょうきんじゃなかったです
komakuchōkinjanakattadesu

Noun
Desu Copula

The polite, past negative form of 鼓膜張筋

1. Wasn't tympanic membrane muscle.; Wasn't a tensor tympani contraction.

Past/Perfective
Negative
Polite
Casual Register