carry through vs perseverate

carry through

verb
  • To persist or continue 

  • To manage to execute; to perform successfully, all the way to the end. 

perseverate

verb
  • To persist in doing something; to continue to repeat an action after the original stimulus has ended. 

  • To cause the perseveration of (a given reflex or response). 

How often have the words carry through and perseverate occurred in a corpus of books? (source: Google Ngram Viewer )