ひおばあさんでわありませんでした
曾おばあさんではありませんでした
hiobāsandewārimasendeshita

Noun
Desu Copula

The polite, past negative form of ひいおばあさん

1. Was not my grandmother.; Was not a grandmother to me.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana