Taspen

Taspen is the language of the agricultural people who lived around the Eastern Mountains and the valleys and meadows surrounding them. Before they settled into this area, they were hunters and gatherers who lived in the West migrating continually through the forests for 1000-1500 years. Their language was known at that time as Proto-Taspen or Proto-Taspin.

Passive Voice
In PT, there was a suffix *-wi that marked the passive on the verb. This has eroded over time and the passive is now only recognizable by how it changed the root.