きく

効く

to be effective; to take effect; to be good (for)

N5Common wordGodan verb (ku ending)
Godan verb (ku ending), Intransitive verb
to be effectiveto take effectto be good (for)
Godan verb (ku ending), Intransitive verb
to workto function well
Godan verb (ku ending), Intransitive verb
to be possible (to do, use, etc.)to be able to
Godan verb (ku ending), Transitive verb
to taste (alcohol)to try

Conjugations

Present辞書形
効く(きく)
Negativeない形
効かない(きかない)
Pastた形
効いた(きいた)
Past Negativeなかった形
効かなかった(きかなかった)
Te-formて形
効いて(きいて)

Example Sentences

(くすり)が効いた。

The medicine has worked.

(くすり)はすぐ効いた。

The medicine had an immediate effect.

(かれ)は絵には()が利く。

He has a sharp eye for painting.

(かれ)はとんちのきく男だ。

He is a quick-witted man.

(くすり)(かれ)の胃に効きました。

The medicine acted on his stomach.