How do I know if my husband is lying about his citizenship status?

I would like someone to help me with my situation, I came here for marriage on tourist visa, my husband keeps saying he is getting his green card soon, as he asked them to renew it but they sent it to an old address. Then he had a felony but he did fine and they promised him to send the green card to him on last july, but we received nothing. Now he says he want to try to get citizenship. To tell you the truth I have been hearing this for two years now, and I am really tired, all what I want to know, is he a resident or lying to me? I just want know the truth because I overstayed my visa. I hope you have a way to help me, I assure you all what I need to know is the truth, so I can start from there. Thank you for your help.