get past vs go by

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. 

go by

verb
  • To pass or go past without much interaction. 

  • To be called, to use as a name. 

  • To follow; to assume as true for the purposes of making a decision, taking an action, etc. 

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