有没有be have been的说法?比如was had been..不可以的话 那么类似的怎么用?

有没有be have been的说法?比如was had been..不可以的话 那么类似的怎么用? 英语语法：They have been gone.这里表达的不是被动态?有没有They have gone.这个说法的? I have been working hard all morning有没有什么语法错误有have been working这种说法吗 有没有have many happiness的说法? 有没有这个说法:I mustn't have been a doctor.可以说mustn't`````吗? had been doing是什么语法?举个例子~有have/has been doing的说法吗? also would be,would also be和would be also有什么区别?类似的还有“always have been”,have always been以及have been always. 有没有is said to have been doing的结构 有没有have doing这个说法?我们都知道现在完成时有have done 和have been done 两种用法,那么请问现在完成进行时中除了有have been doing外有不有have doing? 有没有be afraid of+that从句 的说法? nothing can be forever 有没有更好的说法? 请问：有没有must have been? there have been 的用法there be 是有什么什么.have been是完成时.求分析there have been have/had + been/be的区别是什么? have been=be Have you ever been to Hangzhou?是正确的 但是Have you ever gone to Hangzhou?有这种说法吗 be for sb有没有这个说法? 有没有be dangerous这个说法