Grammar Info

N3 Lesson 2: 16/22

もの・もんBecause, Cause

Can sound childish/cute

Structure

Verb + （んだ） + もの(1)
い-Adj + （んだ） + もの(1)
な-Adj + （なん） + だ + もの(1)
Noun + （なん） + だ + もの(1)

(1) もん

Details

  • Register

    Standard

  • Rare Kanji

    物

About もの・もん

もの, an extremely common noun in Japanese that means 'thing', can also be used as a sentence ending particle. In these cases, it adds a small amount of emotion to a statement, and presents it as a reason. Due to this, もの is usually translated as 'because', or 'cause'. Literally, it just means 'it's an (A) thing!'. もの is quite casual, so should be avoided in formal situations.

To use もの as 'because', attach it to the end of the plain form of any word.

To emphasize もの even further, the explanatory んだ (after a verb or い-Adjective), or なんだ (after a な-Adjective or noun) will often be used.

Caution

もの can be shortened to もん in its use as a sentence ending particle. However, this makes the statement sound far more 'cute' or 'childish'. Due to this, it should be avoided in standard conversation.

Fun Fact

Although it is not used regularly in standard Japanese, んですもの is a slightly more polite version of んだもの that appears frequently in anime, manga, and novels.

Related

Examples

--:--

    まずいんだもん。

    (Because) it tastes bad!

    彼女(かのじょ)は嘘(うそ)をついているもの。

    (Because) she is lying.

    怒(おこ)らないでね。子供(こども)なんだもん。

    Don't be angry. (Because) he is just a kid.

    寒(さむ)いんだもん。風邪(かぜ)をひいてしまうよ。

    (Because) it's freezing. I'm gonna catch a cold, man!

    「食(た)べすぎ！」って言(い)われても…、美味(おい)しいんだもん！

    Even if someone says 'you are eating too much!'... (Because) it's delicious! (so I can't help it)

  • Get more example sentences!

    Premium users get access to 12 example sentences on all Grammar Points.

Self-Study Sentences

Study your own way!

Add sentences and study them alongside Bunpro sentences.

もの・もん – Grammar Discussion

Join the Discussion