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Japanese grammar

に vs で: where things are and where things happen

English uses at or in for both, but Japanese splits places in two. に marks where something is, and で marks where an action happens. に also pins an action to a clock time. Getting this split right early saves a lot of unlearning later.

Examples are written in kana. New to it? Start with the hiragana chart.

In short

  • Place + に + ある/いる: where a thing or person exists.
  • Place + で + action verb: where something is done.
  • Clock time + に: さんじに, at three o'clock.
  • Relative time words like あした take no に.

に — where it is

に marks WHERE something exists: Place + に + thing + が + ある/いる.

に pins down WHERE something exists. Frame: Place + に + thing + が + ある/いる. あそこに ねこが いる = 'there's a cat over there'; ここに ほんが ある = 'there's a book here.'

  • ここに ほんが ある。

    There's a book here.

  • あそこに ねこが いる。

    There's a cat over there.

Common mistake

ここ ほんが ある。

Why it's wrong: the place of existence needs に — ここに, not bare ここ.

で — where you do it

で marks where an action happens; に marks where something exists — たべる takes で, いる takes に.

で marks where an ACTION happens; に marks where something EXISTS. いえで たべる = 'I eat at home' (action); いえに ねこが いる = 'there's a cat at home' (existence). Doing → で. Being → に.

  • いえで たべる。

    I eat at home.

  • うみで あそぶ。

    I play at the sea.

Common mistake

いえに たべる。

Why it's wrong: eating is an ACTION, so its place takes で — に marks only where things exist.

At the shop

で marks where you act, so みせで かう is 'buy at the shop'; getting there is still に.

で marks WHERE an action happens, and for a beginner that is the shop: みせで かう is 'buy it at the shop'. What you buy there is こめ — uncooked rice, the bag on the shelf, not the cooked bowl on the table (that one is ごはん). Getting to the shop is still に, not で: みせに いく.

  • こめを かう。

    I buy rice.

Common mistake

いえに たべる。

Why it's wrong: に is where a thing IS; the place you do something takes で — いえで たべる.

At three o'clock — 〜じに

A clock time takes に (さんじに); relative words like きょう and あした take no に at all.

A point on the CLOCK takes に: さんじに いく. It is the same に you already use for a destination — Japanese treats a moment in time like a place you arrive at. RELATIVE time words — きょう, あした, いま — take NO に at all: きょう いく, あした いく. (A named point on the calendar takes に the way a clock time does; those arrive later.) ごぜん (a.m.) and ごご (p.m.) sit in front of the hour: ごご さんじに.

  • さんじに いく。

    I'll go at three.

  • くじに たべる。

    I eat at nine.

Common mistake

さんじ いく。

Why it's wrong: a clock time needs に — さんじに いく

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