hassle vs past tense

hassle

noun
  • An action which is not worth the difficulty involved. 

  • Trouble, bother, unwanted annoyances or problems. 

  • A fight or argument. 

verb
  • To engage in a mock dogfight. 

  • To pick a fight or start an argument with. 

  • To trouble, to bother, to annoy. 

adj
  • hassling; hasslesome 

past tense

noun
  • A grammatical form (often a verb form) that is used in a conditional expression to refer to an event, transaction, occurrence, or object that is hypothetical and often counterfactual. 

  • A grammatical form (often a verb form) that refers to an event, transaction, occurrence, or object that happened (or had happened), or existed, at some time before now (the applicable reference time). 

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