標本 ひょうほん抽出 ちゅうしゅつじゃなかったです
hyōhonchūshutsujanakattadesu

Noun
Desu Copula

The polite, past negative form of 標本抽出

1. Wasn't sampled.; Wasn't a specimen.

Past/Perfective
Negative
Polite
Casual Register