如何找出下列文字中出现的连续重复单词？

Question

如to to，have have have,tomorrow tomorrow等等，语句如下：

You’d better to to hit the hay early as you you have have have an important examination tomorrow tomorrow.

我尝试了

([a-z]+[ ])\1+

但是tomorrow tomorrow.无法匹配

尝试了

([a-z]+)[ ]\1+

但是重复三遍等have无法完全匹配，还把不该匹配的地方匹配了

初学正则表达式，求教，谢谢。

Answer 1

(\b\w+\b)(?:\s\1)+
点击查看

Answer 2

\W?(?:(\w+)\W)(?:\1\W)+捕获组的第一个元素是整个字符串，第二个元素是重复的单词。

Answer 3

(\s[a-z]+)\1+

Answer 4

(\s\b\w+\b)\1+