英语肯定句怎么写( 二 ) _英语

如： The teacher tells me to do it.→ The teacher tells me not to do it. 7.使役动词和感官动词（make,let,hear,see,watch等）后接省略to的不定式，此种不定式变否定句时只需在省略to的动词原形前加not 。如： I saw her work.→I saw her not work. 8.特殊形式的否定句，有以下几种：（1）肯定句含有every-的合成词时，变否定句时改为no- 。
如： Everything is ready.→Nothing is ready. (2)肯定句中含有always, usually和ever时，变否定句时改为never 。如： He is always late for school.→He is never late for school. (3)肯定句含有many,much时，变否定句时分别改为few,little 。
如： Many students know him.→Few students know him. (4)肯定句中含有still时，变否定句时应改为no longer 。如： Tom is still in bed.→Tom is no longer in bed. (5)肯定句含有both, both 。
and,all时，变否定句时应改为never,neither 。nor,none 。
如： Both of us are students.→Neither of us is a student. (6)肯定句含有nearly, almost时，变否定句时应改为 hardly 。如： Lily nearly knows him .→Lily hardly knows him . (7)肯定句含有“形容词+ enough”时，变为否定句时应改为“too +形容词的反义词” 。
如： He is short enough to reachit.He is too tall to reach it. (8)谓语动词是be,have（有）或谓语含有助动词、情态动词时，直接在这些词后加上否定词not 。如： She can swim.She can't swim. (9)谓语动词是行为动词时，要在该动词前加上do /does /did not，该词恢复原形。
如： He gets up early.He doesn't get up early. (10)既要否定谓语动词，又要变换句中的单词。如： He can read and write.He can't read or write. (11)用含否定意义的词或词组取代肯定句中的某些词或词组。
如： I know both English and Chi- nese.I know neither English nor Chinese. 类似的有：ever /alwaysnever, somebodynobody,somethingnothing, everybody no one,almost hardly 9.祈使句的肯定式变否定式（1）一般在动词前加上 don't 。如： Open the window .Don't open the window. (2)含有“Let's 。”
的祈使句，一般用“Let'snot 。”的形式，美国人偶尔也用“Don'tlet's 。”
这一形式。加强语气时使用“Let'sdon't 。”
这一形式。如： Let's go there.Let's not go there. 10.复合句的肯定式变否定式一般将主句变为否定式。
如：I saw her when I left .I didn't see her when I left. 。
4.英语的肯定句怎么改成否定句肯定句改为否定句【正文快照】：一、若句中有be动词、情态动词或助动词时，则分别在它们的后面加上not 。
例如：1.Heisateacher.→Heisnotateacher.2.Icanfindthebag.→Ican'tfindthebag.3.Iwillgotomyhometownnextweek.→Iwillnotgotomyhometownnextweek.4.Theyhavealreadyfinishedit.→Theyhavenotfinishedityet.二、若句中谓语动词为原形、第三人称单数或过去式，则应在谓语动词之前加上donot(don't)熏doesnot穴doesn't雪熏didnot穴didn't雪熏并将原谓语动词变为原形。例如：1.Igotoschoolonfooteveryday.→Idon' tgotoschoolonfooteveryday.2.Hehaslunchatschool.… Turn(T,u,r,n)off the tv这句改为否定句don't turn off the TV We are going to go fishing tomorrow，要求根据go fishing来提问。
改为： What are you going to do tomorrow？（这不是改为什么祈使句、而是就划线部分提问、就是改为特殊疑问句、）否定句就是有否定词、表达否定、祈使句是表示请求‘、命令、号召等句子、谓语动词用原型、比如：come in 。

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