inform vs turn in

inform

verb
  • To act as an informer; denounce. 

  • To give form or character to; to inspire (with a given quality); to affect, influence (with a pervading principle, idea etc.). 

  • To communicate knowledge to. 

  • To impart information or knowledge. 

adj
  • Without regular form; shapeless; ugly; deformed. 

turn in

verb
  • To relinquish; give up; to tell on someone to the authorities (especially to turn someone in). 

  • To convert a goal using a turning motion of the body. 

  • To submit something; to give. 

  • To go to bed; to retire to bed. 

  • To reverse the ends of threads and insert them back into the piece being woven so they do not protrude and eventually unravel. 

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