any time now vs shortly

any time now

adv
  • very soon 

shortly

adv
  • In or after a short time; soon. 

  • In a short or brief time or manner; quickly. 

  • In few words 

  • In an irritable ("short") manner. 

How often have the words any time now and shortly occurred in a corpus of books? (source: Google Ngram Viewer )