不純 ふじゅん異性 いせい交遊 こうゆうじゃなかったです
fujun'iseikōyūjanakattadesu

Noun
Desu Copula

The polite, past negative form of 不純異性交遊

1. Wasn't having improper relations with the opposite sex.; Didn't have inappropriate relationships.

Past/Perfective
Negative
Polite
Casual Register