but to do和but do的差别

but to do和but do的差别 but to do和but for doing的区别 cannot but do和 can but do的区别? do nothing but do 与have no choice but to do 与can't but do except to do 和but to do的区别如题 这两个意思有什么不同 比如说have no other ambition but/except to do sth there is nothing to do but to do 还是there is nothing to do but 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 would do but do 和would have done but did 关于do...but do之类的语法是怎么样的?如i have no choice but to do 关于cannot but do；can't help but to do;have no choice but to do等与“不得不做”有关的词组 have no choice but to do sth.have nothing to do but do sth. do+but to do/but do的用法我只是不明白下面两句中为什么一句用to do 一句用do.eg1:I have nothing to do but cry.eg2:There was nothing for them to do but to remain silence.我只知道在but前面有do时后面跟do,但不明白为 nothing but 的用法but 后用to to还是do?有何规则 关于“sympathetic”的问题请问“He was sympathetic,but he could do nothing.”和“He made sympathetic noises,but said he could do nothing to help.怎么区分? But have 《Nothing》 to do with you but have nothing to do with you but do you know ()to keep health But she knew what to do (英译中)