早発 そうはつ せい痴呆 ちほう しょうではありませんでした
sōhatsuseichi hōshōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 早発性痴呆症

1. Was not early-onset dementia.; Was not early-onset dementia, politely.

Past/Perfective
Negative
Polite
Formal Register
Medicine