役立つ（やくだつ）
JLPT N3 · Godan verb (Group 1)
Pitch accent: nakadaka (middle-high) — pitch drops after mora 3
Meaning: to be useful
Conjugation
| Form | Japanese | Reading |
|---|---|---|
| masu-form (polite) | 役立ちます | やくだちます |
| te-form | 役立って | やくだって |
| ta-form (past) | 役立った | やくだった |
| nai-form (negative) | 役立たない | やくだたない |
| potential form | 役立てる | やくだてる |
Example sentences
- この辞書は勉強に役立つ。 — This dictionary is useful for studying.
- 旅行で覚えた言葉が役立った。 — The words I learned while traveling came in handy.
Related words
See it used in real works
- Example sentences from Japanese novels & web fiction (Massif)
- Hear “役立つ” pronounced in real videos (YouGlish)