研究 けんきゅう対象 たいしょう しゃじゃなかったです
kenkyūtai shōshajanakattadesu

Noun
Desu Copula

The polite, past negative form of 研究対象者

1. Was not a research subject.; Was not a participant in the study.

Past/Perfective
Negative
Polite
Casual Register