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