Present, Future 憂い is [x] 憂くない is not [x] Past 憂かった was [x] 憂くなかった was not [x] Te-form, Continuative 憂くて is [x] and... 憂くなくて is not [x] and... Provisional 憂ければ if it is [x] 憂くなければ if it is not [x] Conditional 憂かったら when/if it is [x] 憂くなかったら when/if it is not [x] Adverbial 憂く [x]-ly Noun form 憂さ [x]-ness