need什么时候加动词原形,什么时候加动名词
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need是情态动词时,后加动词原形.need后接动名词,一般用于被动态,如:My car needs repairing.这句话如果不用动名词,就得用不定式的被动态,My car needs to be repaired.PS:used to do sth表示曾经干过某事.如:I used to work in the factory.be used to doing sth表示习惯于干某事.如:I am used to having a bath in the moring.