英语中肯定句

肯定句又叫陈述句呀，主系表：eg:i'magirl.主谓宾：shewritealetertohim.1.主语+系动词(be)+表语2.主语+call+宾语+宾语补足语3.主语+name+宾语+宾语补足语4.主语+iscalled+宾语补足语5.主语+isnamed+宾语6.主语+regard+宾语+as+宾语被足语7.主语+be+no(none)+otherthan(but)+表语8.主语+be+nothing+elsebut(but,elsethan,lessthan)+表语9.itis(was)+强调部分+that(who)+从句10.主语+感觉动词+表语11.主句+asif(asthough)+从句12.主语+be+saidtobe(so-called)+表语13.主语+be,itissaid，+表语14.sofarfrombeing+表语，主语+谓语+其它15.主语+be+more+表语+than+表语16.主语+be+less+表语+than+表语17.主语+be+表语+ratherthan+表语18.主语+be+notsomuch+表语+as表语19.主语+be+either+表语+or+表语20.either+主语+or+主语+be+表语参考：

通常来说，直接加not就可以，比如含有have的句子后面直接加not就可以

你好，要想学好英语，你要不断积累，这样你就可以将英语学好。我帮你总结几点，供你参考，谢谢。一、当肯定句的谓语动词是be或由be构成时，改为否定句，应在be后面加not。二、当肯定句的谓语动词只是行为动词时，改为否定句，要用“助动词do（does，did）＋not＋动词原形”。三、当肯定句的谓语是由“情态动词can，may，must等＋动词原形”构成或由“助动词will，have，had等＋动词原形（或动词的现在分词、过去分词）”构成，变否定句，要用“情态动词／助动词＋not＋动词原形（或动词的现在分词、过去分词）”构成。四、当肯定句的谓语是have时，分两种情况：1.当have作“有”讲时，变否定句的方法有：a

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1.The students have read about twenty English novels in the past three years. 2.I have my homework finished . 3.He has painted the front door green. 4.I've written an article. 5.It has been raining these days. 6.I have come fro。