主語 しゅご じょ動詞 どうし倒置 とうちでしょう
shu gojodōshito uchideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 主語助動詞倒置

1. Probably…; It seems…; Likely…

Polite
Presumptive
Conjecture
Linguistics