I think it means that Sb.(subject of the sentence, could be you, or he, she, it's not clear with only this part of sentence) already did something. 하다 means do sth. this part is 하다+시(add a tone of respect towards the subject of the sentence)+었(means the action has already happened)+어요.

I think that It-s means " He is do something"

It means " Did you have "