Endangered Languages Project - Dakelh (Carrier) - Constraints on Source/Goal Co-Occurrence in Carrier

In Carrier, it is impossible for the source and goal of motion to be specified in the same clause. This constraint applies at the level of argument structure. The constraint results from the fact that Carrier motion verbs have a single directional argument position. This is a goal by default, but may be changed into a source by suitable morphology.