can't wait vs stand by

can't wait

verb
  • To eagerly anticipate; to find it hard to wait for a forthcoming pleasurable event. 

  • To need to be attended to right away. 

stand by

verb
  • To wait in expectation of some event; to be ready. 

  • To support; to continue to support despite things being bad. 

  • To remain loyal or faithful to. 

  • To do nothing. To be inactive in a situation. 

How often have the words can't wait and stand by occurred in a corpus of books? (source: Google Ngram Viewer )