句子中词与词的语法关系，词的语法作用，主要的不是依靠语序或词尾的屈折变化，而是依靠助词或助动词等粘着成分来决定的。
The grammar relationship and function of words between sentences mainly depend on particle or the adhesive components of the particle, but the word order or inflected changes at the end of sentence.
只有当INFL被特定的助动词或情态动词实现的时候，轻量动词短语省略才会出现。
Only when INFL is realized by certain auxiliaries or modals can vP ellipsis constructions occur.
助动词经常修饰动词或形容词，它的后边不能直接带名词。
Auxiliary verbs are often used to modify verbs or adjectives.
根据语义，动词need有时当作助动词来使用（如can或may），有时象实义动词（如want或try）。
Depending on the sense, the verb need behaves sometimes like an auxiliary verb (such as can or may) and sometimes like a main verb (such as want or try).
格条件要求名词词组必须有格，而格被动词或介词指定在宾语位置，或者被助动词指定在主语位置。
The Case Condition principle requires that a noun phrase have Case and Case is assigned by V(verb) or P(preposition) to the object position, or by AUX(auxiliary) to the subject position.
帮助动词表示需要、可能或愿望的词叫助动词。
Verbs that "help" other verbs to express necessity, possibility and willingness are called auxiliary verbs.
帮助动词表示需要、可能或愿望的词叫助动词。
Verbs that "help" other verbs to express necessity, possibility and willingness are called auxiliary verbs.
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