Complex sentence: Hindkowans have mixed origins and almost all speak Hindko as the first language.It appears that most are ancestrially Pakhtuns.A few of them are not Pakhtuns, for example, Awan who are putatively Arabs; or the Karlal and Dhund Abbasi, who are of indigenous hill origins.
Split into simpler sentences: Hindkowans have mixed origins and almost all speak Hindko as the first language. Some of them are not Pakhtuns, for example, Awan who are putatively Arabs; or the Karlal and Dhund Abbasi, who are of indigenous hill origins.