如果说i can't do sth.如何回答?是all right 还是that's OK

如果说i can't do sth.如何回答?是all right 还是that's OK 可不可以说“I may can't do sth. can't but do sth I can go with you because l haven't _____.A.do sth B.sth do C.to do sth D.sth to do i can't stand 后面加什么是加to do sth 还是 doing sth, can't but do sth怎么解释 can't wait (to do sth)=? May/Can I do sth.表什么 can`t but do sth ,can`t help but do sth I don't know可以说成don't know吗?在语法上正确吗?don't do sth和sb don't do sth如何区别? wait to do 和wait doing怎么用?我迫不及待用Ican't wait to do sth.还是I can't wait doing sth. 是i don't like do sth 还是doing sth? sb can do sth举个例子 sb can't do sth举个例子 can’t wait to do sth.与 can’t wait doing sth.的区别 can't wait to do sth.还是 can't wait doing sth. 是can't wait to do sth.还是can't wait doing sth. can't stand to do sth.和 can't stand doing sth.有什么区别呀 do what sb.can to do sth.如何造句