be busy with 之后的动词需不需要加ing?
问题描述：
be busy with 之后的动词需不需要加ing?
答
当然,介词后都要
答
be busy with通常来讲，后面加名词的情况比较多。
因为加动词可以直接说be busy doing
He is busy doing his homework.
=He is busy with his homework.
我们通常不讲：He is busy with doing his homework.
答
be已经是一个动词了，后面当然要ing
答
be busy with doing 忙于做某事
答
要,be busy with doing sth.
因为with是介词,所以带宾语,宾语用名词形式.
答
be busy with sth/doing sth固定词组 ,意为忙于做某事.