move ahead vs perdure

move ahead

verb
  • to continue without being distracted; to keep going 

  • to proceed; to make or signify progress 

  • to go on to something else 

perdure

verb
  • To continue to exist, last or endure, especially for a great length of time. 

  • To exist in such a way as to possess distinct temporal parts (in perdurantism). 

How often have the words move ahead and perdure occurred in a corpus of books? (source: Google Ngram Viewer )