couldn't but do象这种类型的还有哪些词组还有什么时候后面还有to do

couldn't but do象这种类型的还有哪些词组还有什么时候后面还有to do
couldn't but do象这种类型的还有哪些词组
还有什么时候后面还有to do

couldn't but do象这种类型的还有哪些词组还有什么时候后面还有to do
can do nothing but do
would rather do

can do nothing but do
would rather do
动词不定式TO加V原型