Present, Future 後ろ暗い is [x] 後ろ暗くない is not [x] Past 後ろ暗かった was [x] 後ろ暗くなかった was not [x] Te-form, Continuative 後ろ暗くて is [x] and... 後ろ暗くなくて is not [x] and... Provisional 後ろ暗ければ if it is [x] 後ろ暗くなければ if it is not [x] Conditional 後ろ暗かったら when/if it is [x] 後ろ暗くなかったら when/if it is not [x] Adverbial 後ろ暗く [x]-ly Noun form 後ろ暗さ [x]-ness