情态动词是那些
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情态动词是那些情态动词是那些情态动词是那些情态动词有四类：①只做情态动词：must,can(could),may(might),oughtto②可做情态动词又可做实义动词：need,dare③可做情态
情态动词是那些
情态动词是那些
情态动词是那些
情态动词有四类：①只做情态动词：must,can(could),may(might),ought to ②可做情态动词又可做实义动词：need,dare ③可做情态动词又可做助动词：shall(should),will(would) ④具有情态动词特征：have(had,has) to,used to
can must may
can/could
should
need
must
may/might
should could would can shall may might