The conjugations are automatically generated. This is for a guide only - please double-check if you need to use the information for something important!
Dictionary formhayai  速い
Stemhaya-  速-
PositiveNegative
    is fast isn't fast
Present Indicative Plain hayai
速い
hayakunai
速くない
Polite hayai desu
速いです
hayaku arimasen
速くありません
    was fast wasn't fast
Past Indicative Plain hayakatta
速かった
hayakunakatta
速くなかった
Polite hayakatta desu
速かったです
hayaku arimasen deshita
速くありません でした
    will probably be fast probably won't be fast
Presumptive Plain hayai darō
速い だろう
hayakunai darō
速くない だろう
Polite hayai deshō
速いでしょう
hayakunai deshō
速くない でしょう
    if it were fast if it were not fast
Conditional Plain hayakereba
速ければ
hayakunakereba
速くなければ
Polite
More conjugations coming soon...
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List of verbal adjectives