~~ Topic moved from Bringing Family members of US citizens forum to Adjustment of Status (AOS) from work/student/tourist visas as this is AOS from a B2 case ~~
@Redro mentioned AP, not green card.
You have to read and familiarize yourself with the guide provided by @Timona above as well as all the instructions to all the forms which can be found on USCIS.gov.
This forum is DIY forum, while we are here to provide advice, the burden of doing reading and research is ultimately on you/your wife. You have to become an A student of the process and forms. If that seems too confusing and you feel like you need help, i strongly suggest you hire professional immigration help (after doing careful research on that too because we have seen very poor advice from attorneys here often).