how long vs please

how long

adv
  • Used literally: for what duration. 

adj
  • Used literally: what duration. 

  • Used literally: what length. 

please

adv
  • Said as a request to repeat information. 

  • An expression of annoyance or impatience. 

  • Used to make a polite request. 

  • Used as an affirmative to an offer. 

verb
  • To desire; to will; to be pleased by. 

  • To make happy or satisfy; to give pleasure to. 

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