follow vs tend

follow

verb
  • To walk in, as a road or course; to attend upon closely, as a profession or calling. 

  • To understand, to pay attention to. 

  • To subscribe to see content from an account on a social media platform. 

  • To live one's life according to (religion, teachings, etc). 

  • To carry out (orders, instructions, etc.). 

  • To be a logical consequence of something. 

  • To watch, to keep track of (reports of) some event or person. 

  • To go or come after in a sequence. 

  • To go after; to pursue; to move behind in the same path or direction, especially with the intent of catching. 

noun
  • In billiards and similar games, a stroke causing a ball to follow another ball after hitting it. 

  • The act of following another user's online activity. 

tend

verb
  • To accompany as an assistant or protector; to care for the wants of; to look after; to watch; to guard. 

  • To be likely, or probable to do something, or to have a certain habit or leaning. 

  • To kindle; ignite; set on fire; light; inflame; burn. 

  • To look after (e.g. an ill person.) 

  • To contribute to or toward some outcome. 

  • To manage (an anchored vessel) when the tide turns, to prevent it from entangling the cable when swinging. 

  • To make a tender of; to offer or tender. 

  • To wait (upon), as attendants or servants; to serve; to attend. 

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