I don't think he can finish the on time,can't he?修改病句,顺便解释下为什么,

问题描述：

答

I don't think he can finish the on time, can he？
一般用I don't think 是用来否定后面从句的内容的，所以我们疑问的时候，要用肯定的疑问。
望采纳~~

答

can he? 从don't 可以看出是否定前移句子是I think he can't finish the on time
宾语从句主句主语是第一人称，反意从句，从句中是can't ，所以后边用can he?

答

I don't think he can finish that on time, doesn't he?

答

这个叫做否定转移，其实否定的是后面，应该是he can't finish the XXX on time 和 I think，这样其实后面是否定句，因此，应该是I don't think he can finish the on time, can he?

答

can't he改为can he?

答

应该是can he ？因为前面是否定的。

答

I don't think he can finish the task on time,can he?
前否后肯,前面是否定前移：我觉得他不能按时完成任务,是吗?

答

附加疑问句应改为can he? 因为前面用了否定前移I don't think