to have gone there
No debí haber ido allí yo solo.
I shouldn't have gone there alone.
You shouldn't have gone there.
Tom no necesitaba haber ido allí.
Tom didn't need to have gone there.
No deberías haber ido allí sin mí.
You shouldn't have gone there without me.
Más te valdría no haber ido allí.
You would have been better off not going there.