～もの/～もん

Today’s Grammar Point: ～もの/～もん

Today’s grammar point is the sentence ending particle もの. It is used at the end of a sentence to describe a cause or reason. However, unlike ～から or ～ので, ～もの/～もん implies “because ～, I couldn’t help it,” so ～もの/～もん is often used to give an excuse.

～もの/～もん is usually used in a casual scene with a plain form ending but if it is used after a polite form ending, it certainly gives a feminine feel. In a very casual scene, もの can be replaced by もん.

It is often used with ～んだ/～んです.

Connection

• [plain form sentence] もの/もん。
• [plain form sentence] んだ + もの/もん。
• [polite form sentence] もの/もん。 (sounds very feminine)
• [plain form sentence] んです + もの/もん。 (sounds very feminine)

Examples

「まだ起おきてるの？」「うん、まだ宿題しゅくだいがあるもん。」
“Are you still up?” “Yeah, I still have some homework.”

「今度こんど京都きょうとに行いかない？」「行いかない。先週せんしゅう行いったもの。」
“Why don’t we go to Kyoto next?” “I won’t go. I went there last week.”

今日きょうの試験しけんは難むずかしかった。勉強べんきょうしなかったもん。
Today’s exam was difficult. That’s because I didn’t study.

「トトロの映画えいが見みに行いかない？」「いかない。先週せんしゅう見みたんだもん。」
“Why don’t we go and see Totoro’s movie?” “No I won’t go. I saw it last week.”

きょうのケーキ見栄みばえが悪わるいなあ。でも、いいか。うちで食たべるんだもの。
Today’s cake doesn’t look good but that’s OK because I’m eating it at home.

このゲームがすきなの。おもしろいもの。
I like this game because it’s fun.

この野菜やさいは体からだにいいのよ。新鮮しんせんだもの。
This vegetable is good for you because it’s fresh.

「どうして新年会しんねんかいに来こなかったの？」「知しらなかったんだもん。」
“Why didn’t you come to the New Year party?” “Because I didn’t know about it.”

「え、まだ食たべるの？」「うん、おいしいんだもん。」
“What? Are you eating more?” “Yeah, it’s delicious.”

弟おとうとは女おんなの子こに興味きょうみがないの。超ちょう真面目まじめなんだもの。
My brother isn’t interested in girls. He’s super serious.

ケーキを買かうお金かねがないんだ。給料日前きゅうりょうびまえだもの。
I don’t have the money to buy a cake because it’s just before the payday.

ケーキを買かうお金かねがなかったんだ。給料日前きゅうりょうびまえだったんだもの。
I didn’t have the money to buy the cake Because it was just before the payday.

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