把有情态动词的句子变成否定句和疑问句,举例子.

举最简单的例子(1)Youare(be)astudent.否Youarenotastudent.问Areyouastudent?(2)Youcandoit.否Youcannotdoit.问Canyou

常见的情态动词包括：must;may;can;needmay:否定:No,youmaynot疑问：MayI.need：否定:No,youneedn't.疑问：MustI.（或者NeedI.）must否

当然,但少数情况特殊.

疑问句：例：Didyoudosth?否定句：例：Ididn'tdosth.肯定句就要变成过去式了：例：Ihadlunchatmyhomeyesterday.所以,只有肯定句的动词是要变过去式的,其它的

一般而言如果一个正确的句子中出现了多个动词就意味着这是一个复合句那么变一般过去时时只需要把主句的谓语动词以你提到的方式改变就可以了

即实义动词,表示动作的动词.它分为及物动词和不及物动词两种.实义动词有完全的词义,并能独立做谓语动词.后面必须跟宾语意义才完整的实义动词,叫做及物动词(transitiveverb).

1.Tomnevergetstoschoolontimeoftenselelow②Noonelikessinging.③Donothavehetler.④LiPingdosenotlikeEnglis

1ThatwasnotthebeginingofmylifetimehobbyWasthatthebeginingofmylifetimehobby?2Ididnotusetogooutsidewit

Idonotlikepeaches.Hedoesnotlikekites.

例1：Ihaveapen.Ihaveapen.have用于除第三人称单数外的人称实义动词,变否定句不能在have后加not,则需要助动词来帮助解决.do+not=don’t.例2：Myfatherha

不变啊~情态动词后面加not后面还是be动词原形

Shewasn'tateacher10yearsago.Ididn'tplayintheparkyesterday.Mydaddidn'tdrinkwaterjustnow.Theydidn'tgot

你指的是实义动词作谓语的情况吧.一般疑问句以助动词do开头,后面不变.如：DoIknowyou?特殊疑问句在一般疑问句前加疑问词.如：HowdoIcook?否定句在动词原形前加do的否定形式,按时态变

HeisainGradeFive.HeisnotinGradeFive.IsheinGradeFive?2.Sheishappy.Sheisnothappy.Isshehappy?3.Iusually

1.Shedoesn'tlikewatchingEnglishfilm.DoesshelikewatchingEnglishfilm?2.Wewon'thaveagoodtimetomorrow.Wi

arethehoysandthegirlsinthesamegrade?ThehoysandthegirlsarenotinthesamegradeIshiscoattoolong?Hiscoatis

含must的肯定句,在改为一般疑问句时,must提到句首；在改为否定句时,也通常将must改为need't.

陈述句变否定句除了含有BE动词和情态动词的,就只剩下含有实义动词的情况了,这一类变否定句最基本的规律就是,在实义动词前直接加donot或doesnot,然后将动词变回原形即可.例如Helikesbas

1.Thereweren'tmanystudentsintheclubjustnow.Weretheremanystudentsintheclubjustnow.2.Ididn'twritetohim

hi,boy.canyoubemygirlfiriend?