Japanese i-adjective

hayai — early 早い

Explore the principal positive, negative, past, non-past and conditional forms of this Japanese adjective.

How i-adjectives conjugate

The final 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 early hayai 早い is not early hayakunai 早くない
Polite hayai desu 早いです hayakunai desu 早くないです
Past Plain was early hayakatta 早かった was not early hayakunakatta 早くなかった
Polite hayakatta desu 早かったです hayakunakatta desu 早くなかったです
Presumptive Plain will probably be early hayai darō 早いだろう hayakunai darō 早くないだろう
Polite hayai deshō 早いでしょう hayakunai deshō 早くないでしょう
Conditional Standard if it is early hayakereba 早ければ if it is not early hayakunakereba 早くなければ
Connecting form Standard hayakute 早くて hayakunakute 早くなくて

These conjugations are generated automatically and are intended as a learning guide. Check the natural usage in context when accuracy is important.