Nominal composition, noun incorporation and non-finite formations in Sanskrit: Delimiting the boundaries of the verbal paradigm

Noun incorporation is unusual for the Indo-European linguistic type. Nevertheless, in some Indo-European languages, such as Sanskrit and Frisian, we find examples based on converbs (in Sanskrit) or gerunds (in Frisian). It is argued that the existence/lack of incorporated complexes based on particular (de-)verbal formations can be used as a criterion for delimiting the verbal paradigm, distinguishing its members from nominal derivatives that do not belong to the paradigm properly speaking