Present, Future 遅い is [x] 遅くない is not [x] Past 遅かった was [x] 遅くなかった was not [x] Te-form, Continuative 遅くて is [x] and... 遅くなくて is not [x] and... Provisional 遅ければ if it is [x] 遅くなければ if it is not [x] Conditional 遅かったら when/if it is [x] 遅くなかったら when/if it is not [x] Adverbial 遅く [x]-ly Noun form 遅さ [x]-ness