has been的用法has been的用法

has been的用法has been的用法 there has been的用法 there has/have been的用法 has been to的主要用法 Though learning gymnastic has been more difficult 这里的has been 是什么用法不是只有 have been dong 和has been done吗?这里的has been 是什么? has been 还有,解释一下has+been+过去分词的用法,是什么时态之类的. 求has been for的具体用法和与has been to,has gone to, has been in, has been for的区别.加has been for等的例句十万火急！！！！！如解决，非常感谢！！ have been to,has been to ,have been in ,与have gone to,has gone to 的区别和用法. have been 和 has been的区别 has been have been的区别 was made与has been made的区别及用法 have has had或 having +been 的区别和用法 has been 与 has gone 的区别? it has been since.用法 has been died 与has been dead的区别.. has been losing和has been lost的区别 has been to和has been in 的区别 has been worked和has been working的区别