be there vs do it

be there

verb
  • Used other than figuratively or idiomatically: see be, there. 

  • To be available to provide comfort and support for someone, especially in a period of difficulty. 

do it

verb
  • Used other than figuratively or idiomatically: see do, it. 

  • To urinate. 

  • To be appealing or suitable. 

  • To have sex; make it. 

  • To do something exceptionally foolish or unacceptable. 

How often have the words be there and do it occurred in a corpus of books? (source: Google Ngram Viewer )