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含must的肯定句变否定句

只需要把“是”变为“不是”,把“有”变为“没有”,还要在句末加上“吗”字和问号,使句子变为反问句.句子原意不变,又变成否定句.

用needn't

must 有非推测性用法和推测性用法两种情态意义,变否定句的方法不同.▲非推测性用法的must表示义务,情态意义为“必须”.he must finish his homework before bedtime. 他必须在上床前写完作业.此用法的must两种否定形式:1. 结构上否

Must变为否定句,通常变为don't/doesn't have to 或者don't/doesn't need to或needn't do或can't.因为must的否定形式mustn't意思已经变为'千万别',不再表示不必须的意思了请采纳,谢谢~

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,通常变为don't/doesn't have to或者don't/doesn't need to或needn't do或can't.因为must的否定形式mustn't意思已经变为'千万别',不再表示不必须的意思了.must的英式读

must变否定句,只需要在 must 后面直接加not ,变为 must not 缩写为mustn't; 变疑问句,直接将must提到句首.例如:1、Must I come over to help you with your work tomorrow ?【must 必须】 Yes,you must/No,you needn't2、Can I

must wear must提前,后跟动词原形 回答,yes, I must. no, i needn't

陈述句:I must go now一般疑问句:Must I go now?

如果主语是第一人称即为I,YOU或者复数时,应为 don't have to,后面保持不变; 但如果主语是单数第三人称时,则要用doesn't have to, 后面同样保持不变.

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