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Grammar › N1 · 10 Obligation and prohibition

〜べからず: must not (sign)

N1 · 10 Obligation and prohibition

A classical-sounding prohibition that is mainly seen on signs and notices.

Dictionary form of a verb + べからず: 立ち入るべからず, 芝生に入るべからず. Old written style. Not used in normal conversation; modern signs use 〜禁止 or 〜しないでください. Related: 〜べからざる + noun.

Examples

Beyond this point, no entry for anyone except those concerned.

An old lesson says, "You must not break a promise."

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