もの
(Mono)
Used at the end of a sentence to provide a reason, often in an emotive or slightly childish excuse.
Connection rules
- +Verb/Adjective/Noun (Plain form) + もの / もん
Examples
1.
だって、お腹が空いていたんだもの。

Datte, onaka ga ai te i ta n da mono.
But I was hungry, you see.
「Explaining why I ate late」
2.
まだ子供だもん、分からないよ。

Mada kodomo da mon, wakara nai yo.
He's still a child, so he doesn't understand.
「Defending a child's mistake」
Practice
But I didn't know about it! (as an excuse)
だって、そんなこと___。
Romaji also accepted