cann't ...but ...的句型的问题but 后面 什么时候加 to do什么时候加 do

cann't ...but ...的句型的问题but 后面 什么时候加 to do什么时候加 do
cann't ...but ...的句型的问题
but 后面 什么时候加 to do
什么时候加 do

cann't ...but ...的句型的问题but 后面 什么时候加 to do什么时候加 do
对cann't ...but ...句型,当前面有动词do的某种形式时,用do.否则用to do.如：
I can't do anything but stay at home.
I have on choice but to wait

I can't say I'm surpirse but I am amused.
can't help doing sth. can't help but to do sth. 不得不做,情不自禁地
I can't help but to eat sweets

can't do 不能做
can't to do 禁不住去做