get on with vs perseverate

get on with

verb
  • To proceed with; to begin or continue, especially after an interruption. 

  • To have a good relationship with. 

  • To successfully use or adapt to. 

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 get on with and perseverate occurred in a corpus of books? (source: Google Ngram Viewer )