成績 せいせき優秀 ゆうしゅう しゃじゃなかったです
seisekiyūshūshajanakattadesu

Noun
Desu Copula

The polite, past negative form of 成績優秀者

1. Wasn't a high achiever.; Wasn't successful.; Wasn't outstanding.

Past/Perfective
Negative
Polite
Casual Register