()やす

たやす
verb (godan)
to let die out; to use up; to run out of
他動詞 transitivechange
See also: ()える (intransitive)
Conjugation
AffirmativeNegative
Present()やす()やさない
Present polite()やします()やしません
Past()やした()やさなかった
Past polite()やしました()やしませんでした
て form()やして()やさなくて
ている present()やしている()やしていない
ている polite()やしています()やしていません
ている past()やしていた()やしていなかった
ている past polite()やしていました()やしていませんでした
Conditional ば()やせば()やさなければ
Conditional たら()やしたら()やさなかったら
Volitional()やそう
Volitional polite()やしましょう
Potential()やせる()やせない
Passive()やされる()やされない
Causative()やさせる()やさせない
Imperative()やせ()やすな
1. to let die out; to extinguish; to discontinue
To allow something to come to an end or cease to exist, often through neglect or inaction. Used for traditions, lineages, fires, and other things that can be maintained or lost.
伝統(でんとう)()やしていけない。
We must not let the tradition die out.
()()やさないよう(まき)くべた。
I added firewood so the fire wouldn't go out.
They are looking for a successor so as not to let the family line that has continued from their ancestors die out.
2. to run out of; to use up the supply of
To use up or fail to maintain a stock of something. Often used in the negative form to mean keeping a constant supply.
笑顔(えがお)()やさない。
She never stops smiling.
She always keeps flowers on display without letting them run out.
That restaurant always has a steady stream of customers, so you can't get in without a reservation.
Uses the intransitive form ()えない.

Transitivity: ()やす is transitive. The intransitive counterpart is ()える (to cease, to die out).

ASPECT (ている): ()やしている indicates an ongoing state of having let something lapse.

Negative form: Very frequently used in the negative (()やさない) to express maintaining something continuously: 笑顔(えがお)()やさない (to always keep smiling).

Common patterns

  • [thing]()やす (to let something die out)

Common collocations