如何将标记添加NEG_到以后的所有单词not,no并且never直到在字符串中的下一个标点符号(用于情感分析)？我假设可以使用正则表达式,但我不确定如何.
输入:It was never going to work, he thought. He did not play so well, so he had to practice some more.
期望的输出:It was never NEG_going NEG_to NEG_work, he thought. He did not NEG_play NEG_so NEG_well, so he had to practice some more.
不知道怎么解决这个问题？