I wondered if the vocative forms of participles really exist.
E.g. the vocative of vocatus would be vocate, same with vocaturus and vocature.
Both forms can be found on pages like Wiktionary (vocate, vocature).
A quick search on packhum shows that vocature could not be found anywhere.
I cannot find anything anywhere else about vocatives of participles.
Are these only fictional automatically generated forms or do they really exist?