I have been on child support for two years, and my wife and are still married, and live together do I have to still pay child support.

I don't understand. What do you mean you are still married? Have you been paying child support to your wife? Or is this child support for children outside your marriage?

I have been on child support for two years, and my wife and are still married, and live together do I have to still pay child support.

Were you separated at some point? The courts won't make you pay child support to someone that you're residing with... at least not in my state.