encourage vs take to task

encourage

verb
  • To foster, give help or patronage 

  • To mentally support; to motivate, give courage, hope or spirit. 

  • To spur on, strongly recommend. 

take to task

verb
  • To lecture, berate, admonish, or hold somebody accountable for his or her actions. 

How often have the words encourage and take to task occurred in a corpus of books? (source: Google Ngram Viewer )