ほうりこみじゃなかったです
放り込みじゃなかったです
hōrikomijanakattadesu

Noun
Desu Copula

The polite, past negative form of ほうりこみ

1. Wasn't thrown in.; Wasn't put in.; Wasn't dropped in.

Past/Perfective
Negative
Polite
Casual Register
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Usually Written in Kana