请问情态动词和助动词有什么分别？

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请问情态动词和助动词有什么分别？

情态动词 = modal verbs can(present) could(past) may ( present) might ( past) will( present) would( past) must need ( semi-modal verb)普通动词 or情态动词== o in one -I can( modal verb) ( no " to") swim(action verb). - I will( modal verb) ( no " to") go ( action verb) to Hong Kong. -I don't need( 普通动词 )to do that. <-------------------- " to" here -I need( modal verb) not do that. <------------------ no " to" " need" is used as a modal verb here. ____________________________________ "dare" can be 普通动词 or 情态动词 I dare not say it. <------------------------------- no " to" dare = modal verb情态动词 I do not dare to say it. " to" dare = 普通

动

词

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助

动

词

is/are/was/were/do/does/need/did/have/has/can/may/will/must The main difference : is/are/was/were/ + verb( for example

go) = WRONG do/does/did/can/may/will/must + verb = OKAY have/has are used in present perfect tense too Have you finished ( past participle) it? Has she finished it? are called auxiliary verbs( helping verbs) Here is a website for you. npc.edu/staff/~ngtungying/english_grammar/lessons/lesson07

助动词主要用途是用来配合动词的现在分词、过去分词或不定式，来构成各种动词的时态。助动词有be

have

do 如：I am ing就形成了现在进行式 He has finished（现在完成式）而情态动词则与不定词连用表示许可、可能、义务、推测等如： He can speak French You may go We must hurry 情态动词主要有(can

could may might

must had to ought shall should will

would) 而这个世界还有半情态动词，如：need dare

used等希望帮到你！