"the age is come"
When writing my book about a local history, I used as a heading:- The Age of the Engineer is come", simply because I'm sure I've seen this usage elsewhere. Am I OK with this, or have I got it round my neck?
Solution 1:
It depends on the effect you're trying to create. Is there a reason why you want a portentious (or pretentious) tone?
If not, use has. In fact, if it's a title, use Has — and capitalize Come, too.