まかせきりじゃなかったです
makase kirijanakattadesu

Noun
Desu Copula

The polite, past negative form of 任せきり

1. Wasn't left to [me/him/her/them].; Wasn't entirely entrusted.; Wasn't left up to [me/him/her/them].

Past/Perfective
Negative
Polite
Casual Register