Present, Future 古い is [x] 古くない is not [x] Past 古かった was [x] 古くなかった was not [x] Te-form, Continuative 古くて is [x] and... 古くなくて is not [x] and... Provisional 古ければ if it is [x] 古くなければ if it is not [x] Conditional 古かったら when/if it is [x] 古くなかったら when/if it is not [x] Adverbial 古く [x]-ly Noun form 古さ [x]-ness