hurt- has hurt- was hurt- were hurt 之间有什么区别呢?

hurt---可以是原形,也可以是过去式和过去分词 “伤害”
has hurt ----这是hurt 的现在完成时形式（主语是三单）“已经伤害”
was hurt-----这是hurt 的一般过去时的被动语态（主语是三单）“被伤害”
were hurt-----这是hurt 的一般过去时的被动语态（主语是除三单外其他）“被伤害”