Kumi logo
    Kumi

    Learn Japanese. Where understanding folds into fluency.

    Dictionary

    KanjiKanji vocabularyKana vocabularyKanaRadicalsGrammarJLPT N5

    Learn

    GuidesStart where you areWhat is KMT?RoadmapFAQ

    Connect

    EmailDiscordInstagramThreadsTikTokYouTubeLinkedInBlueskyX

    Newsletter

    Start learning free →

    Free forever tier. No card required.

    © 2026 Kumiai Inc. All rights reserved.

    AboutFAQContactStatusPrivacyTermsAttributions
    Dictionary
    1. Dictionary
    2. Grammar
    3. 〜やけん

    〜やけん

    〜やけん

    This phrase tells you the reason for something. It is like saying "because" or "so" in English.

    KMT4CasualSlangCompound ParticleMixedKyushuKyushu Copula And AssertionGrammar

    Noun + やけんPrimary
    な-Adjective + やけん
    い-Adjective + やけん
    Verb [dictionary form] + やけん

    This phrase tells you the reason for something. It is like saying "because" or "so" in English.

    福ふく岡おか出しゅっ身しんやけん、豚とん骨こつラーメンが大だい好すきっちゃん。

    I'm from Fukuoka, so of course I love tonkotsu ramen.

    CasualNon PastAffirmativeMid SentenceDeclarativeFood & DiningTravel & Transportation
    あそこは安あん全ぜんやないけん、行いかん方ほうがよかよ。

    It's not safe over there, so you'd better not go.

    CasualNon PastNegativeMid SentenceProhibitionDaily Life
    昨きの日う、祭まつりやったやけん、道みちが混こんどったとよ。

    It was the festival yesterday, so the roads were crowded.

    CasualPastAffirmativeMid SentenceDeclarativeCulture & TraditionsTravel & Transportation
    この服ふく、高たかかやけん、買かえんわ。

    These clothes are expensive, so I can't buy them.

    CasualNon PastAffirmativeMid SentenceDeclarativeFashion & BeautyDaily Life
    「なんで来こんかったと?」「仕し事ごとがあったやけん。」

    "Why didn't you come?" "Because I had work."

    NeutralPastAffirmativeSentence EndingDeclarativeWork & Career

    This phrase shows your personal reason. It is like saying, 'This is why I think this.' You are very sure about your reason.

    This is different from other Kyushu words like "bai" or "tai." Those just state a fact. "Yaken" tells you the reason why something is happening. It answers "why?"

    Don't use this when you are writing formal papers. It is mostly used in Kyushu, a part of Japan. People outside Kyushu might not understand it.

    Use this when you want to say "because." You can put it in the middle of a sentence. This connects a reason to a result. You can also use it at the end of a sentence. This gives a full explanation.

    〜だ / 〜だった

    This means 'is' or 'was'. It is the casual way to say 〜です and 〜でした.

    Kumi logo

    Track your mastery

    Kumi's KMT system tracks your mastery across kanji, vocabulary, grammar, and reading. Create a free account to use it on 220,000+ concepts.

    Related concepts for this entry

    Variants

    • 〜や

    prerequisite

    • 〜だ / 〜だった

    Explore more

    Grammar dictionary›Browse all entries›