Standard Bosnian is based on the most widespread dialect of Serbo-Croatian, Shtokavian, more specifically on Eastern Herzegovinian, which is also the basis of Standard Croatian, Serbian, and Montenegrin.
Standard Bosnian is based on the most widespread dialect of Serbo-Croatian, Shtokavian. This was more specifically on Eastern Herzegovinian. Eastern Herzegovinian is also the basis of Standard Croatian. Eastern Herzegovinian is also the basis of Serbian. Eastern Herzegovinian is also the basis of Montenegrin.