信任 しんにん統治 とうち制度 せいどじゃありませんでした
shinninto uchiseidojārimasendeshita

Noun
Desu Copula

The polite, past negative form of 信任統治制度

1. Was not a trust-based system.; Was not a system of trust.

Past/Perfective
Negative
Polite
Terminal Form