@MaruChan0000 , first we need to know your and your wife's visa status; when did she enter the country with F-1 ; is it still valid; what country are you from and she from ; did you get married in the USA or back in your home country; did you each assert treaty benefits; do you both have TIN ( SSN or ITIN ); is she s grad student or an undergrad; has she ever claimed educational credits before?
The answer as to whether you can file jointly would depend on answers to above questions and thereafter whether you can claim American opportunity credit
