Answer:
I am what no man ever yet did see, which never was, but always is to be. What am I?
A move made popular by the King of Pop.
I am the word that is always spelled correctly by everyone.
When I come in from sea to shore twenty paces you'll see No less no more.
Open me, and you can't see me without a mirror. Close me and you can't see me at all. What am I?
What is always coming but never arrives?