窓外 そうがい放出 ほうしゅつじゃなかったです
sōgaihōshutsujanakattadesu

Noun
Desu Copula

The polite, past negative form of 窓外放出

1. Wasn't released outside.; Wasn't thrown out the window.

Past/Perfective
Negative
Polite
Casual Register