べく

べく
auxiliary
in order to; so as to; with the aim of
formalgrammatical
1. in order to; so as to; with the aim of
Formal expression attached to the dictionary form of a verb to indicate purpose or intent. The conjunctive form of べし. Common in formal written Japanese including news, business, and formal speech.
They invited an expert in order to resolve the problem.
He continued making efforts every day so as to achieve his goal.
We are working as a whole company in order to provide better service.

Conjunctive form of べし. Attaches to the dictionary form of verbs.

Common patterns

Register: formal/written only. Not used in casual conversation — use ため or よう in everyday speech.

Similar words

  • ため: in order to — the everyday alternative
  • よう: so that; in order to — used with non-volitional verbs
  • べき: should; ought to (attributive form of べし)
  • べし: should; must (archaic/formal predicative form)