役立つ
やくだつ
to be useful; to be helpful; to serve the purpose
JLPT N1 Common word
Meanings
Godan verb (-tsu), Intransitive
to be useful; to be helpful; to serve the purpose
Forms
| Plain | Polite | |
|---|---|---|
| Present | 役立つやくだつ | 役立ちますやくだちます |
| Negative | 役立たないやくだたない | 役立ちませんやくだちません |
| Past | 役立ったやくだった | 役立ちましたやくだちました |
| Past negative | 役立たなかったやくだたなかった | 役立ちませんでしたやくだちませんでした |
| Te-form | 役立ってやくだって |
|---|---|
| Potential | 役立てるやくだてる |
| Passive | 役立たれるやくだたれる |
| Causative | 役立たせるやくだたせる |
| Volitional | 役立とうやくだとう |
| Imperative | 役立てやくだて |
| Conditional (ば) | 役立てばやくだてば |
| Conditional (たら) | 役立ったらやくだったら |
Example sentences
トムは役立たずだ。
Tom's useless.
俺って役立たずだな。
I'm useless.
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Mutual understanding makes for peace.
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His advice was very helpful.
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English is useful in commerce.
More examples (10)
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A ruler helps one to draw a straight line.
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Words serve to express ideas.
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I think this information will help.
ヨガはストレス軽減に役立つ。
Yoga can help lower stress.
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Soap helps remove the dirt.
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Sports help to develop our muscles.
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This dictionary has been of great use to me.
ほんまにもう、この役立たずが。
Honestly, this is useless!
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This book will be helpful to your study.
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A gun might come in handy.