曽祖 そうそ父母 ふぼではありませんでした
sōsofubodewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 曽祖父母

1. Was not a great-grandparent.; Was not one's great-grandparents.

Past/Perfective
Negative
Polite
Formal Register