needn't 的近意词是什么 要变成3个词的

needn't 的近意词是什么 要变成3个词的 needn't的同义词是什么 needn't的过去式是什么 与needn't词义相同的词是什么?如题 don't need,needn't 的区别 needn't 与mustn't的区别? 为什么must的否定既有mustn't又有needn't?那need的否定是什么? 为什么must的否定式要用can’t或者needn’t?may要用can’t no,you needn't的问句 什么词的否定词是needn't Must I wear like this?No,you needn't的中文意思是什么? you needn't finish your work now的同义句是什么 needn't needn't have done 和don't need to 的区别 couldn't don't have to needn't的区别 mustn't needn't I needn't study.和I don't need to study.区别是什么?I needn't study.情态动词I don't need to study.实义动词2着的区别是什么?怎么理解他不同的意思? 用must,need以及needn't和mustn't开头的疑问句回答的肯定和否定回答形式是什么? 关于need,情态动词和行为动词need的区别是什么,什么时候用needn't什么时候用doesn't need,