Present, Future 重い is [x] 重くない is not [x] Past 重かった was [x] 重くなかった was not [x] Te-form, Continuative 重くて is [x] and... 重くなくて is not [x] and... Provisional 重ければ if it is [x] 重くなければ if it is not [x] Conditional 重かったら when/if it is [x] 重くなかったら when/if it is not [x] Adverbial 重く [x]-ly Noun form 重さ [x]-ness