always vs until the cows come home

always

adv
  • At all times; throughout all time; since the beginning. 

  • Constantly during a certain period, or regularly at stated intervals (opposed to sometimes or occasionally). 

  • In any event. 

until the cows come home

phrase
  • For a very long period of time. 

How often have the words always and until the cows come home occurred in a corpus of books? (source: Google Ngram Viewer )