Present, Future 手強い is [x] 手強くない is not [x] Past 手強かった was [x] 手強くなかった was not [x] Te-form, Continuative 手強くて is [x] and... 手強くなくて is not [x] and... Provisional 手強ければ if it is [x] 手強くなければ if it is not [x] Conditional 手強かったら when/if it is [x] 手強くなかったら when/if it is not [x] Adverbial 手強く [x]-ly Noun form 手強さ [x]-ness