害する · suru verb (special)
| Form | Positive | Negative |
|---|---|---|
| Dictionary | 害する | 害さない |
| Polite | 害します | 害しません |
| Past polite | 害しました | 害しませんでした |
| Past | 害した | 害さなかった |
| Te-form | 害して | 害さないで |
| Desire | 害したい | 害したくない |
| Potential | 害せる | 害せない |
| Passive | 害されるalso formal 害せられる | 害されないalso formal 害せられない |
| Causative | 害させる | 害させない |
| Causative passive | 害させられる | 害させられない |
| Volitional | 害そう | |
| Polite volitional | 害しましょう | |
| Imperative | 害せ | 害するな |
| Conditional | 害せば | 害さなければ |
| Tara conditional | 害したら | 害さなかったら |
suru verb (special), transitive verb
Broadly used for causing physical or abstract harm to people, health, reputation, or things. Often appears in formal or written contexts.
Smoking harms your health.
The incident damaged the company's reputation.
suru verb (special), transitive verb
Euphemistic or formal use for taking a life; less direct than 殺す. Often found in legal, historical, or literary contexts.
He killed the enemy general.
suru verb (special), transitive verb
Used for impeding progress, plans, or actions. Common in formal writing and set phrases like 業務を害する.
Noise hinders work.
That policy may obstruct economic growth.
Excessive drinking harms one's health.
Unauthorized access is an act that obstructs the company's operations.
That remark could damage his reputation.