くものすかびでしょう【
蜘蛛の巣黴でしょう
】

kumonosu kabideshō

Noun

,

Desu Copula

Expresses probability in a polite manner ("probably…") of くものすかび

1. Probably mold.; Probably cobweb mold.

Polite

,

Presumptive

,

Conjecture

,

Usually Written in Kana