I am so busy that I can't finish/finishing my homework是用finish还是finishing?前面的be busy好像是-doing,而后面有个情态动词-do那应该选什么?

I am so busy that I can't finish/finishing my homework是用finish还是finishing?前面的be busy好像是-doing,而后面有个情态动词-do那应该选什么?
I am so busy that I can't finish/finishing my homework
是用finish还是finishing?
前面的be busy好像是-doing,而后面有个情态动词-do
那应该选什么?

I am so busy that I can't finish/finishing my homework是用finish还是finishing?前面的be busy好像是-doing,而后面有个情态动词-do那应该选什么?
finish
这里有个词组 so .that.因.以致.
我因为太忙而无法完成家庭作业
busy with sth, busy doing

用finish 完成是瞬间性动词

原型

can 是情态动词，所以应该用动词原形，用finish，be busy doing sth 是一个短语，但doing sth 必须是在busy后面