膨らす · godan verb (-su)
| Form | Positive | Negative |
|---|---|---|
| Dictionary | 膨らす | 膨らさない |
| Polite | 膨らします | 膨らしません |
| Past polite | 膨らしました | 膨らしませんでした |
| Past | 膨らした | 膨らさなかった |
| Te-form | 膨らして | 膨らさないで |
| Desire | 膨らしたい | 膨らしたくない |
| Potential | 膨らせる | 膨らせない |
| Passive | 膨らされる | 膨らされない |
| Causative | 膨らさせる | 膨らさせない |
| Causative passive | 膨らさせられる | 膨らさせられない |
| Volitional | 膨らそう | |
| Polite volitional | 膨らしましょう | |
| Imperative | 膨らせ | 膨らすな |
| Conditional | 膨らせば | 膨らさなければ |
| Tara conditional | 膨らしたら | 膨らさなかったら |
godan verb (-su), transitive verb
Rare transitive verb meaning to cause something to swell or expand. In modern Japanese, 膨らます is far more common for this meaning.
See also: 膨らます
In old documents, the expression 'to inflate a balloon' can be found.
He puffed out his cheeks to show his dissatisfaction.
Standard kanji spelling for this rare transitive verb; the kanji 膨 is associated with swelling or expanding.
Kana spelling may be used for clarity or when the kanji is not needed.
Alternate kanji spelling; 脹 is less common and typically used for bodily swelling.
Derived from the intransitive verb 膨らむ (ふくらむ) by changing the ending to the transitive suffix す. The kanji 膨 is used for swelling or expanding.