be up to vs tolerate

be up to

verb
  • To depend on, to be the choice of. 

  • To do or be involved in doing; to do (often something mischievous or inappropriate). 

tolerate

verb
  • To bear, withstand. 

  • To allow or permit without explicit approval, usually if it is perceived as negative. 

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