i didn't see you for a long time,where you had being这句话哪里要改的?i __(be)there many times 这中间填什么？

i didn't see you for a long time,where you had being这句话哪里要改的?i __(be)there many times 这中间填什么？
i didn't see you for a long time,where you had being
这句话哪里要改的?
i __(be)there many times
这中间填什么？

i didn't see you for a long time,where you had being这句话哪里要改的?i __(be)there many times 这中间填什么？
应该是I haven't seen you for a long time,where you had been?
很久没见你了,你去哪了?