英语三种时态肯定句否定句问句标志词

iwatchtv.idon'twatchtv.doyouwatchtv?一般现在时iwatchedtv.ididn'twatchtv.didyouwatchtv?一般过去时iamwatchingtv.

在其动词前加donot或doesnot,didnot

很简单啊.举个最简单的例子Youcanfindtheanswer.(转换为否定句)=Youcan'tfindtheanswer.(转换为一般疑问句)=Canyoufindtheanswer?(否定疑问

1、一般现在时：一般疑问句：Doseshegotoschoolbybike?肯定句：Shegoestoschoolbybike.否定句：Shedoesnotgotoschoolbybike.2、一般过

肯定句：主+begoingtodo主+will+动词原形否定句：主+benotgoingtodo主+willnot+动词原形疑问句：be+主+goingtodowill+主+动词原形

一般否定句问句：举例说明Isn'theateacher?Can'tyoukeepsilencenow?Aren'tyouateacher?Won'thebeheretomorrow?

如果把原句变为否定句,则：DamingandLinglingaren'tChinese.如果原句做肯定回答,则：Yes,theyare.仅供参考!

donot=don'tisnot=isn'tarenot=aren't你变否定的时候,你看到有do的就变don't,有is/are的就变isn't/aren't

一、写出下列动词的第三人称单数drink________go_______stay________make________look_________have_______pass_______carr

一般现在时：HecomesfromAmerican.DoeshecomefromAmerican?yes,hedoes.No,hedoesn't.Wheredoeshecomefrom?一般过去时：H

Iwillgotoschooltomorrow.ShallIgotoshcooltomorrow?Iwon'tgotoschooltomorrow.Hewillgotoschooltomorrow.W

如果是根据句子的意思的话1.keepout(进来-出去)这样不过你说吧肯定句变否定应该是指单单更改句式吧1.don'tcomein2.don'twashyourhands3.don'tbequick因

他看电视肯定句hewatchestv否定句hedoesn'twatchtv疑问句doeshewatchtv?否定回答no,hedoesn't.

一般过去时,动词用过去式.如Iboughtabookyesterday.过去进行时.动词用was/were+doing.时间用过去的某个时间.如Iwasdoingmyhomeworkatsevenye

donot=don'tisnot=isn'tarenot=aren't你变否定的时候,你看到有do的就变don't,有is/are的就变isn't/aren't

初中的时态只有8种:1、一般现在时也就是主语+am/is/are+表语;或主语+动词+宾语(如果动词是不及物就不用加宾语)2、一般过去时:和一般现在时一样只是把系动词和动词改成过去的形式就可以了;3、

5分钟内记不住找我!请拿一张纸,画一条横的长线,在这条线上点四个点再分别在这四个点上,每个点上竖着拥有4个时态英语总共有16种时态,4个时间点：过去,过去将来,现在,将来1：过去一般过去时was/we

这三类句型的改动都和助动词有关系.常见的助动词有：BE,DO,MUST,WILL,CAN,其中有几个不是助动词,但因为用法差不多,所以归为一类.如要进行改动,只需把助动词提出来,并进行相应改动即可.例

肯定句：Theyusuallygodivingintheafternoon.否定句：Theyusuallydon`tgodivingintheafternoon.简单疑问句：Dotheyusually

1.主语+was(were)+其他再答：这是第一种含有be动词的再答：变否定直接在waswere后面加not再答：如：（肯定句）Iwaslateyesterday.再答：（否定句）Iwaslateye