熱水ねっすい鉱床こうしょうじゃなかったです
ne' suikō shōjanakattadesu

Noun
Desu Copula

The polite, past negative form of 熱水鉱床

1. Wasn't a hot spring deposit.; Wasn't a hydrothermal deposit.

Past/Perfective
Negative
Polite
Casual Register