鉄石 てっせき心腸 しんちょうではありませんでした
tesseki shinchōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 鉄石心腸

1. Was not of iron will.; Did not have a heart of stone.

Past/Perfective
Negative
Polite
Formal Register