Japanese i-adjective
yasui — cheap 安い
Explore the principal positive, negative, past, non-past and conditional forms of this Japanese adjective.
How i-adjectives conjugate
The final い changes to create negative, past and connecting forms. The adjective itself carries this grammatical information, so a separate verb is not required in the plain forms.
Conjugation table
The English glosses are approximate; the natural translation depends on the surrounding sentence.
| Form | Style | Positive | Negative |
|---|---|---|---|
| Present (non-past) | Plain | is cheap yasui 安い | is not cheap yasukunai 安くない |
| Polite | yasui desu 安いです | yasukunai desu 安くないです | |
| Past | Plain | was cheap yasukatta 安かった | was not cheap yasukunakatta 安くなかった |
| Polite | yasukatta desu 安かったです | yasukunakatta desu 安くなかったです | |
| Presumptive | Plain | will probably be cheap yasui darō 安いだろう | yasukunai darō 安くないだろう |
| Polite | yasui deshō 安いでしょう | yasukunai deshō 安くないでしょう | |
| Conditional | Standard | if it is cheap yasukereba 安ければ | if it is not cheap yasukunakereba 安くなければ |
| Connecting form | Standard | yasukute 安くて | yasukunakute 安くなくて |
These conjugations are generated automatically and are intended as a learning guide. Check the natural usage in context when accuracy is important.