cause for regret vs pity

cause for regret

pity

noun
  • Something regrettable. 

  • A feeling of sympathy at the misfortune or suffering of someone or something. 

verb
  • To make (someone) feel pity; to provoke the sympathy or compassion of. 

  • To feel pity for (someone or something). 

intj
  • Short form of what a pity. 

How often have the words cause for regret and pity occurred in a corpus of books? (source: Google Ngram Viewer )