communicative vs forthcoming

communicative

adj
  • Eager to communicate; talkative. 

forthcoming

adj
  • Willing to co-operate or provide information; candid, frank, responsive. 

  • Available when needed; in place, ready. 

  • Approaching or about to take place. 

noun
  • Something that is yet to come. 

  • An act of coming forth. 

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