中高ちゅうこう一貫いっかんこうでしょう
chūkōikkan kōdeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 中高一貫校

1. Probably a middle and high school combined.; Likely a six-year school.

Polite
Presumptive
Conjecture