过去进行时肯定句否定句疑问句

iamdoinghomework.areyoudoingyourhomework/iamnotdoingmyhomeworkiamhavingashowerareyouhavingashoweriam

例句说明吧：MissGaoismyEnglishteacher.一般疑问句,一提二改三变号一提,把系动词is提前,二改把is改为Is,my改为your,三变号把句号变问号.IsMissGaoyourE

用一个一般现在时的句子变否定句Heoftenreadshisbook.→Hedoesn'toftenreadhisbook.一般疑问句并作肯定否定回答DoyoulikecomputerYes,Ido.

过去时was/were(not)do现在时do/does(not)一般将来时willdo(not)现在进行时is/are(not)doing

SuYangissinging.IsSuYangsinging?SuYangisn'tsinging.

一现时：sometimes=attimes,every+时间段,次数+时间段（onceaweek,twiceaday）,never,often,usually,always=allthetime现行时

AreyouOK?Yes,IamOK.No,IamnotOK.Areyouaboy?Yes,Iamaboy.No,Iamnotaboy.Areyouagirl?Yes,Iamagirl.No,Iamn

特殊疑问句Whatwashesayingyesterday?他昨天说什么?一般疑问句Weretheydoingtheirhomeworkatthatmoment?他们在那时做作业了吗?肯定句Iwasf

肯定句：IamwatchingTV.（我正在看电视）Thelittlemonkeyiseatingbanana.(那个小猴子正在吃香蕉.）Heisflyingakite.(他正在放风筝.)Sheisd

一般现在时Heisayoungboy.肯定句Heisn'tayoungboy.否定句Isheayoungboy?一般疑问句Whoisyourfriend?特殊疑问句Sheismyfriend.肯定句S

肯定句was,werebeingdone否定句was,werenotbeingdone一般疑问句:was,were+主+beingdone...特殊疑问句:疑问词+was,were+主+beingdo

肯定句:主语+be（is/am/are）+现在分词否定句：主语+be（is/am/are）+not+现在分词一般疑问句:be（is/am/are）+主语+现在分词特殊疑问句：特殊疑问词+相应be动词+

过去时：TheywenttoBeijing.Theydidn'tgotoBeijing.现在时:TheylikeEnglish.Theydon'tlikeEnglish.一般将来时:形式一：Theya

HaveyoubeentoShanghaibefore?你以前去过上海吗?No,Ihaven'tbeentoShanghaibefore.没,我没去过上海.Yes,IhavebeentoShangha

Whatareyoudoingnow?IamwatchingTV./IamnotwatchingTV.Whatishedoing?Heisreadinganewspaper,/Heisn'treadi

过去将来完成进行时的肯定句:sbwouldhavebeendoingsth过去将来完成进行时的否定句:sbwouldn'thavebeendoingsth过去将来完成进行时的疑问句结构:Wouldsb

wearehavinganEnglishclassesnow.wearen'thavinganEnglishclassesnow.ArewehavinganEnglishclassesnow?Yes,

举例说明：一般现在是：形容习惯动作,并会一直延续下去.或者是真理.Hegoestoworkonfooteveryday.Theskyisblue.现在进行时：当前正在进行的动作.heislearnin

肯定句：主语+be+动词ing+其他一般疑问句：be+动词ing+主语+其他否定句：主语+be+not+动词ing+其他

Iamwritingalettertomymother.Sheisn'tpreperingforherfinalexam.Areyouplayingcomputergamenow?Whatareyou