need 既可以当作情态动词讲,也可以当作实意动词。 当当作实意动词是,需要用need to do sth.的形式,其否定式为 needn't 当当作情态动词讲的话,用need+ do (动词原型)的形式搭配。 情态动词有: can,may,must,should,would,could ,(need).
原创,望采纳。
第2个回答 2012-12-04
sb need sth sb need to do sth sb need sth to do sth sth need doing sth need to be done