脱水 だっすい 酵素 こうそじゃなかったです
dassuisokōsojanakattadesu

Noun
Desu Copula

The polite, past negative form of 脱水素酵素

1. Was not a dehydrogenase.; Wasn't a dehydrogenase.

Past/Perfective
Negative
Polite
Casual Register