ought 是否有过去式和过去分词
问题描述：
ought 是否有过去式和过去分词
记得不太清楚了,学的太多了反而乱了,
答
ought 是情态动词,无过去式 过去分词用法如下ought 情态动词 aux.应该；应当 should,must (showing that it is your duty to do something) · As a Party member,you ought to give the lead.作为党员,你应当带头....