get past vs leave behind

get past

verb
  • To continue around a blockage; to get around (something); to surpass something that is in the way. 

  • To cause someone to overcome a source of grief or get through a difficult time. 

  • To cause something to get around a blockage; to cause to get around or surpass something that is in the way. 

  • To get through a difficult time; to overcome a source of grief. 

leave behind

verb
  • To outdo; to progress faster than (someone or something else). 

  • To pass. 

  • Used other than figuratively or idiomatically: see leave, behind. 

  • To abandon. 

  • To leave (a trace of something). 

  • To not live longer than; to be survived by. 

  • To forget about. 

How often have the words get past and leave behind occurred in a corpus of books? (source: Google Ngram Viewer )