息子 むすこ夫婦 ふうふじゃなかったです
musukofūfujanakattadesu

Noun
Desu Copula

The polite, past negative form of 息子夫婦

1. Wasn't my son and his wife.; Wasn't a couple with my son.

Past/Perfective
Negative
Polite
Casual Register