完成时It has been raining.raining既不是形容词,也不是被动语态

英语 完成时It has been raining for three hours.为什么要加been?加been不是表被动么? 完成时的否定It has often been said这句话的否定是什么 完成时It has been raining.raining既不是形容词,也不是被动语态 it is/has been+时间段+since since后面接完成时还是一般过去?求例子详解!拜谢~ 过去完成进行时It (had been rainning) for 2 days and the field were all under water为什么不用has been rainning He has often been there.不用完成时怎么说 It is over a year since I last wrote to him.为什么前面不用完成时?It has been over a year . it has been since.用法 It has been in my it is/has been= It's has been accepted it has long been assumed 初三英语一般完成时选择6.-Where have you _____,Kate?-I've ______ to the bank.A.gone,goneB.been,beenC.gone,beenD.been,gone7.Her grandfather ______ for two years.A.diedB.has diedC.has been deadD.has been died8.It's six weeks ______ I met you have been 用法如一个句子:He asked me whether the work has been finished.and I said it has been.后面那一句子.我说已经完成了.是不是就用has been就行了? it __ ten years since he __hereA.is;left B.has been;had left为什么是A啊,有since不是应用完成时吗? 英语翻译书上They will have moved to the new house when it has been painted.将来完成时用的对吗? it __ about fifteen years since he __ his hometownA.is;leftB.has been;leaves为什么有since的时候不用完成时 It has been very difficult getting to the bottom of some complicated problems.这句话是现在完成时还是现在完成进行时?