has been，had already，already 这三个字有什么分别 has been,had already, already ...

has been\uff0chad already\uff0calready \u8fd9\u4e09\u4e2a\u5b57\u6709\u4ec0\u4e48\u5206\u522b

have/has been \u5355\u72ec\u7528\u662f\u8868\u793a\u53bb\u8fc7\u67d0\u5730,\u4f8b\uff1aI have been to Beijing.
\u6709\u65f6\u4e5f\u8868\u793a\u73b0\u5728\u5b8c\u6210\u65f6,\u4f8b\uff1aThe movie has been on for five minutes.
\u5728\u8fd9\u53e5\u8bdd\u4e2d,\u8868\u793a\u7535\u5f71\u5f00\u59cb\u5e94\u7528start\u6216begin,\u4f46\u7531\u4e8e\u8fd9\u4e24\u4e2a\u8bcd\u90fd\u662f\u975e\u5ef6\u7eed\u6027\u52a8\u8bcd,\u56e0\u6b64,\u8868\u793a\u4e00\u6bb5\u65f6\u95f4,\u5c31\u8981\u7528be on\u518d\u52a0\u65f6\u95f4\u6bb5.
had already \u662f\u8868\u793a\u8fc7\u53bb\u5b8c\u6210\u65f6,\u6709\u65f6already\u53ef\u4ee5\u7701\u7565,\u4e5f\u53ef\u4ee5\u653e\u5728\u53e5\u5c3e,\u4f8b\uff1aMy friend told me,he had (already) finished his home work.
already\u662f\u5f62\u5bb9\u8bcd\u201c\u5df2\u7ecf\u201d\u7684\u610f\u601d,\u4f8b\uff1aI'm already there.
\u603b\u4e4b,\u4ee5\u4e0a\u8bcd\u6c47\u4e2d,\u53ea\u6709already\u662f\u4e00\u76f4\u8868\u793a\u201c\u5df2\u7ecf\u201d\u7684\u610f\u601d\u7684,\u800c\u53e6\u4e24\u4e2a\u9700\u8981\u6839\u636e\u8bed\u5883\u6765\u5224\u65ad.

have/has been \u5355\u72ec\u7528\u662f\u8868\u793a\u53bb\u8fc7\u67d0\u5730\uff0c\u4f8b\uff1aI have been to Beijing.
\u6709\u65f6\u4e5f\u8868\u793a\u73b0\u5728\u5b8c\u6210\u65f6\uff0c\u4f8b\uff1aThe movie has been on for five minutes.
\u5728\u8fd9\u53e5\u8bdd\u4e2d\uff0c\u8868\u793a\u7535\u5f71\u5f00\u59cb\u5e94\u7528start\u6216begin\uff0c\u4f46\u7531\u4e8e\u8fd9\u4e24\u4e2a\u8bcd\u90fd\u662f\u975e\u5ef6\u7eed\u6027\u52a8\u8bcd\uff0c\u56e0\u6b64\uff0c\u8868\u793a\u4e00\u6bb5\u65f6\u95f4\uff0c\u5c31\u8981\u7528be on\u518d\u52a0\u65f6\u95f4\u6bb5\u3002
had already \u662f\u8868\u793a\u8fc7\u53bb\u5b8c\u6210\u65f6\uff0c\u6709\u65f6already\u53ef\u4ee5\u7701\u7565\uff0c\u4e5f\u53ef\u4ee5\u653e\u5728\u53e5\u5c3e\uff0c\u4f8b\uff1aMy friend told me, he had (already) finished his home work.
already\u662f\u5f62\u5bb9\u8bcd\u201c\u5df2\u7ecf\u201d\u7684\u610f\u601d\uff0c\u4f8b\uff1aI'm already there.

\u603b\u4e4b\uff0c\u4ee5\u4e0a\u8bcd\u6c47\u4e2d\uff0c\u53ea\u6709already\u662f\u4e00\u76f4\u8868\u793a\u201c\u5df2\u7ecf\u201d\u7684\u610f\u601d\u7684\uff0c\u800c\u53e6\u4e24\u4e2a\u9700\u8981\u6839\u636e\u8bed\u5883\u6765\u5224\u65ad\u3002

has been和has already是过去完成时的结构式，也就是说过去式的句子应该是这个形式，has＋ pp如，i has been to shanghai.而already是过去完成式的标志词，看到这个词就要用过去完成时的结构句子。have you already got it?

扩展阅读：having been ... has been married ... andy dole had been a ... had been taken ... if a doctor had been ... have been done ... had gone had been ... has been open ... has borrowed ...