Civil marriage, annulled, yes.
Civil 'partnerships'?, not sure...but in many states, and they differ, in the length of time, if you live with someone, as husband and wife, but no formal 'wedding', they consider you married, as 'common law'...for instance, California seven years...Colorado 6 months.

GfS

.......and P.S." I'll answer Don and Steve shortly...and point out CLEARLY, just how confused they made themselves.