In some languages, these action nominalizations are now used as main clause verbs, sometimes with a copular auxiliary. The argument structure of these main clauses is (almost) identical to the nominalized clauses. Languages with this innovation include: Akawaio, Pemón, Makushi, Kuikuro, Kalapalo, Ye’kwana, and Cariña (of Venezuela), Aretyry Kari’nja (of Suriname), Mapoyo, and Yawarana.
In some languages, these action nominalizations occur as main clause verbs, still with absolutive indexation, but with no special case-marking on the agent and (sometimes) with an auxiliary that agrees with the nominative. So far, this clause type is attested only in Panare and Katxuyana.
In some languages, the action nominalization in a locative phrase becomes the main verb of a progressive or more generalized imperfective construction. In this case, the verb bears only an accusative prefix and the copular auxiliary agrees with the subject. Languages attested with this construction so far are: Panare, Pemón, Akawaio, Makushi, Apalaí, Katxuyana, and Yukpa. Probably it exists also in Mapoyo and Yawarana.