请英语高手用后四种时态分别造句?
问题描述：
请英语高手用后四种时态分别造句?
1,一般完成进行时
2,过去完成进行时
3,将来完成进行时
4,过去将来完成进行时
答
i have been waiting for you for long
i had been waiting for you for long
i will have been waiting for you for long
i would have been waiting for you for long