仮定 かてい ほう相当 そうとう語句 ごくでしょう
kateihō sōto ugokudeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 仮定法相当語句

1. Probably; Likely; Perhaps

Polite
Presumptive
Conjecture
Linguistics