be sick of vs disapprove

be sick of

disapprove

verb
  • To have or express an unfavorable opinion. 

  • To condemn; to consider wrong or inappropriate; used with of. 

  • She disapproves of rap music because of its sometimes aggressive lyrics. 

  • To refuse to approve; reject. 

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