Modal verbs generally take the bare infinitive.
情态动词通常用不带to 
不定式。
词
词
；众数频Modal verbs generally take the bare infinitive.
情态动词通常用不带to 不定式。
The results confirmed his hypothesis on the use of modal verbs.
结果证实了他
情态动词用法假设。
The inherency frequency and vibratory-type are calculated based on the modal analysis of the whole airframe.
对机身整体框架进行模态分析,求解固有频和振型。
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