知らす · godan verb (-su)
| Form | Positive | Negative |
|---|---|---|
| Dictionary | 知らす | 知らさない |
| Polite | 知らします | 知らしません |
| Past polite | 知らしました | 知らしませんでした |
| Past | 知らした | 知らさなかった |
| Te-form | 知らして | 知らさないで |
| Desire | 知らしたい | 知らしたくない |
| Potential | 知らせる | 知らせない |
| Passive | 知らされる | 知らされない |
| Causative | 知らさせる | 知らさせない |
| Causative passive | 知らさせられる | 知らさせられない |
| Volitional | 知らそう | |
| Polite volitional | 知らしましょう | |
| Imperative | 知らせ | 知らすな |
| Conditional | 知らせば | 知らさなければ |
| Tara conditional | 知らしたら | 知らさなかったら |
Used when the subject (often a superior or someone in a position to inform) tells or makes something known to someone. Not inherently honorific; the honorific use is covered in sense 2.
If there are any changes, please let me know in advance.
Honorific (sonkeigo) equivalent of 知る. Used to show respect toward the person who knows something. Often used in the form ご存知 (ごぞんじ) in modern Japanese, but 知らす can appear in formal or literary contexts.
His Majesty knows about that matter.
Honorific (sonkeigo) equivalent of 治める or 統治する, used for a sovereign or high authority. Rare and mostly found in historical or formal contexts.
The Emperor reigns over the country. (honorific)
The king informed the messenger of the news of peace.
The ancient emperor was one who reigned over the realm.