prefer to do 中的to不是介词嘛,为什么不用doing

prefer doing ...to doing prefer to do.rather than do prefer doing to doing sth这个词组,to是介词所以后面接动名词,那么prefer后面为什么加动名 8,prefer to do sth prefer doing to doing prefer to do rather prefer to do 和 prefer doing to doing 和 prefer doing有什么区别,还有他 prefer to do perfer sth to sth prefer doing 是prefer to do 还是prefer to doing prefer to do 还是doing?i prefer to sleep\sleeping? 有什么动词短语中的to是介词,如prefer to doing,请列举,越多越好 prefer doing to doing prefer to doing rather than do prefer sb not to do? 还是doing? prefer to do 和 prefer doing 的区别