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I have eaten my lunch. She has eaten her lunch. He has eaten his lunch. 肯定句 They have eaten their lunch. I have not (haven’t) seen the film. She has not (hasn’t) seen the film. 现在完成时的否定形式: have not (haven’t) +过去分词 has not (hasn’t) +过去分词 I haven’t eaten supper. eat-eaten He hasn’t changed his idea. change-changed My mother hasn’t come back home. come-come 否定句 I’ve already had dinner. I ________ ________ dinner ________. 2. He has just finished his homework. He ________ ________ his homework _________. 3. Mum’s cooked the dinner. Mum _______ ________ the dinner. 4. Susan’s learned English at school. Susan ________ ________ English at school. haven’t had yet hasn’t finished yet hasn’t cooked hasn’t learned 把下列句子改为否定句 Have you eaten your breakfast? 现在完成时的一般疑问句形式 Have/has 提前+过去分词 Have you known