I have come to say goodbay .为什么要用hav,可以省略吗?

I have come to say goodbye等于come saying吗?表伴随状态 首字母填空I have come here e( ) to say goodbye to you. I have come to say goodbay .为什么要用hav,可以省略吗? I have come to say goodbye(to you).这句话中的have come to 怎么去理解?是完成时态吗?如果是翻译不通 I come home,have something to talk to you say:this moment of love my at heart I have nothing further to say. I have nothing to say with you . I have nothing to say!求翻译 I don't have anything to say! I have nothing to say except Hi guys upstairs,I just come to say Hi~ 英语高考语法题When the sailor came into the cafe,I noticed a surprised look ______ over the waitress's face although she didn't say anything?A.to have come B.to come C.has come D.come I have gone away to come back . I do not have anything to say.还是I have nothing to say. 我来是为了跟你说再见.（中译英）I have come here to say goodbye to you.还是 I am coming here to say goodbye to you. I have no problem reading what you have to say. I have nothing to say为什么有have In fact,I want to say that I like you,but I haven't come out.Heart still have the shadow,wait me completely come out I will be brave in the face of you,I love you