Tuguegarao Ibanag may be considered the standard; however, Northern Cagayan Ibanag may be closest to the ancient Pre-Hispanic Ibanag existent prior to the spread of the language throughout the province, as Northern Cagayan was the original Ibanag home territory. On the other hand, Tuguegarao Ibanag, besides having Spanish influences, may have acquired elements from nearby Itawis. At the same time, Isabela Ibanag may have acquired elements from the original Gaddang language predominant in the province.
