文档介绍：:,以ask为例,将其各种时态的构成形式列表如下:现在时过去时将来时过去将来时一般ask/asksaskedshall/willaskshould/wouldask进行am/is/areaskingwas/wereaskingshall/willbeaskingshould/wouldbeasking完成have/hasaskedhadaskedshall/willhaveaskedshould/wouldhaveasked完成进行have/hasbeenaskinghadbeenaskingshall/willhavebeenaskingshould/wouldhavebeenasking42一般将来时的表达方式:将来时用法例句1will/shall++动词原形含有“打算,计划,即将”做某事,或表示很有可能要发生某事It’’+e,start,move,leave,?4beaboutto+动词原形表示安排或计划中的马上就要发生的动作,+动词原形表示按计划进行或征求对方意见We’,可用一般现在时表示将来Themeetingstartsatfiveo’:常用被动语态构成常用被动语态构成1一般现在时am/is/areasked6过去进行时was/werebeingasked2一般过去时was/wereasked7现在完成时have/hasbeenasked3一般将来时shall/willbeasked8过去完成时hadbeenasked4过去将来时should/wouldbeasked9将来完成时will/wouldhavebeenasked5现在进行时am/is/arebeingasked10含有情态动词的can/must/maybeasked注意被动语态的否定式是在第一个助动词或情态动词后加not,短语动词的被动态不可漏掉其中介副词。固定结构begoingto,usedto,haveto,hadbetter变为被动态时,只需将其后的动词变为被动态。如:事项Treesshouldnotbeplantedinsummer./,在英语中一般可用被动结构表示。如:Itisbelievedthat…Itisgenerallyconsideredthat…Itiss