carry out vs sit down

carry out

verb
  • To hold while moving it out. 

  • To execute or perform; to put into operation; to do. 

  • To fulfill. 

sit down

verb
  • To assume a low or sunken position. 

  • To meet formally at a conference table. 

  • To cause to be seated or in a sitting posture; to furnish a seat to. 

  • To assume a sitting position from a standing position. 

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