我过去应该学会自由泳.英文翻译,用should have done

我过去应该学会自由泳.英文翻译,用should have done 我在小时候应该学会自由泳.用should have done should have been done 只表示过去应该做而没做的责备吗?它可以表示推测吗? should have done 与could have done 都是过去将来完成时吗 whould have done 和should have done 用于对于过去的推测的用法区别 关于should have done should have done是什么意思? should have done should have done 造句 英语翻译在过去的几年时间里,那个女孩变化了很多（change)他们这时应该已经到车站了(should have done should have done中的have done 是什么? could have done和should have done