题目内容：

cook help add look hop work live study的过去式和过去分词是什么?
求过去式和过去分词

优质解答

cook过去式cooked 过去分词cooked help过去式helped 过去分词helped add过去式added 过去分词added look过去式looked 过去分词looked hop过去式hopped 过去分词hopped work过去式worked/wrought 过去分词worked/wrou...