Prepositions after adjectives: V

vacant, for, vacant, in, vacant, by "vague about", "vague in" or "vague on"? valid for, in, on, from or at? "valuable to", "valuable for" or "valuable in"? various of, in, from, on or with? "viable for" or "viable in"? "victorious in" or "victorious over"? "vigilant in" or "vigilant about"? violent in, towards, with, to or for? "viral on" or "viral in"? "visible in" or "visible to"? "visual of", "visual for" or "visual in"? "vital to" or "vital for"? vivid in, to, with, for or of? "vocal about" or "vocal in"? void of, in, for, on or as? vulnerable to, in, at, on or among?