Structure
Verb + ものだから(1) + Phrase
［い］Adjective + ものだから(1) + Phrase
［な］Adjective + な + ものだから(1) + Phrase
Noun + な + ものだから(1) + Phrase
(1) もので、もんで、もんだから
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Standard
About ものだから
ものだから is a strong phrase that is used when explaining something or giving an excuse for one's reasoning. This grammar structure can simply be thought of as an extension of から 'because', with the noun もの 'thing' having its usual role of emphasizing what is said before it. Common translations include 'because (A)', and 'the reason is (A)'.
ものだから may appear directly after verbs and い-Adjectives, or な-Adjectives and nouns that are followed with な.
Occasionally, ものだから will be abbreviated to もので, or もんで, without any change in the overall meaning. The change of だ to its conjunctive form で indicates that there is something coming after, despite the fact that what comes after may sometimes be omitted if it is obvious.
Fun-fact
Although it is not a rule, ものだから will primarily be used when explaining one's actions, as a way of emphasizing that the situation of (A) specifically led to the speaker doing (B).
Synonyms
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Examples
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郊外に家を買ったものだから、通勤に２時間もかかる。
Because I bought a house in the suburbs, the commute to work takes two hours.
税関に引っかかったものだから、遅くなってしまいました。
Because I was stopped by the customs officer, I ended up being late.
素人が制作したものだから、やっぱりすぐに壊れてしまった。
Because it is something created by a novice, as expected, it broke right away.
英語が苦手なものだから、海外旅行に行くのは楽しくない。
Because I am bad at English, taking trips abroad isn't fun.
墨で黒く塗ってしまったものだから、何て書いてあったか分からない。
Because it is painted black with ink, I don't know what was written.
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Online
〜ものだ in action
NihongoDayByDay
〜ものだから 〜もの What are the differences?
Japanese StackExchange
〜ものだから・もので VS 〜あまり
日本語の森 [video]
Further breakdown and example sentences
Nihongo Master
Grammar Notes and Breakdown
日本語 NET
ものだから vs. ことだから
Riki Nihongo Dayo [video]
接続・意味・使い方・例文
にほんごの里
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ものだから – Grammar Discussion
Most Recent Replies (2 in total)
megatron0000
The reading section points to a 日本語の森 video that is actually private
Pushindawood
@megatron0000 Thank you for letting us know! I have updated the link. Cheers!
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