Present, Future 沸きが早い is [x] 沸きが早くない is not [x] Past 沸きが早かった was [x] 沸きが早くなかった was not [x] Te-form, Continuative 沸きが早くて is [x] and... 沸きが早くなくて is not [x] and... Provisional 沸きが早ければ if it is [x] 沸きが早くなければ if it is not [x] Conditional 沸きが早かったら when/if it is [x] 沸きが早くなかったら when/if it is not [x] Adverbial 沸きが早く [x]-ly Noun form 沸きが早さ [x]-ness