Japanese companies have already made robots walk and dance.中为什么有个have?是什么时态,
问题描述：
Japanese companies have already made robots walk and dance.中为什么有个have?是什么时态,
答
have made共同做谓语的,是现在完成时态,因为这个句子里有个already,一般遇到这个词用到的时态就是现在完成时即have/has+动词过去分词的形式,表示已经做过某事.