嫁姑 よめしゅうとめでしょう
yome shūtomedeshō

Noun
Desu Copula
no-Adjective

Expresses probability in a polite manner ("probably…") of 嫁姑

1. Probably a mother-in-law.; Likely a wife's mother and husband's mother relationship.

Polite
Presumptive
Conjecture