利息 りそく証券 しょうけんじゃありませんでした
muri soku shōkenjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 無利息証券

1. Was not a non-interest-bearing security.; Was not an interest-free bond.

Past/Perfective
Negative
Polite
Terminal Form