Converb
In theoretical linguistics, a converb (abbreviated cvb) is a nonfinite verb form that serves to express adverbial subordination: notions like 'when', 'because', 'after' and 'while'. Other terms that have been used to refer to converbs include adverbial participle, conjunctive participle, gerund, gerundive and verbal adverb.
Converbs are differentiated from coverbs, verbs in complex predicates in languages that have the serial verb construction.
Converbs can be observed in most Turkic languages, Mongolic languages, as well as in all language families of Siberia such as Tungusic.