happiness是happy的什么变化?

happiness是happy的什么变化? kind-kindness、happy-happiness诸如此类adj.+ness它的词性、词义变化有什么不同/规律? happy和happiness意思有什么不同?后缀ness是是什么? 是wish you happy,还是happiness,不知道的别瞎说. 给我一些英语 语法填空常用的词类转换,如happy(adj) 名词 是 happiness get happy和get happiness有什么区别? happy is happiness Y happiness的词性；happy的 词性;happily的词性 向happy happiness happily这样难区分的词还有? to be happy to happiness happy ,happily ,happiness怎么分别 A person's happiness is not real happy,everyone's happiness is the most powerful中文什么意思? 应该用happy还是happiness?我想表达“祝你永远幸福”是用wish you happiness forever还是wish you happy forever BE HAPPY.In this world,only those men who really feel happy can give women happiness.这句话什么 i wish you happiness和may you be happy 有什么区别 because seeing you smiling makes me happy ,wishing you happiness today,tomorrow,and always什么意 the pursuit of happiness是 什么? 祝你快乐是wish you happy 还是wish you happiness?请说明理由.