klingon_grammar1-7  Exercise 3: Heghlu'meH QaQ jajvam
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  Hegh     root     "die"
  -lu'     group 5  indefinite subject: "one (dies)"
  -meH     group 9  purpose: "in order to"
  QaQ      root     "be good" (a verb: qualities are verbs, Chapter 5)
  jaj      root     noun "day"
  -vam     noun suffix, "this" (Chapter 3)

  Heghlu'meH   =  Hegh-lu'-meH   "in order for one to die"
  jajvam       =  jaj-vam        "this day"
  QaQ          =  "is good"

  Together: "In order for one to die, this day is good"
          = "Today is a good day to die."

Why the two alternatives are not allowed:

  Hegh-meH-lu'     The suffixes must follow group order, and -lu' (group 5)
                   must come before -meH (group 9).
  Heghlu'meHbe'    A rover such as -be' can follow the root or any suffix,
                   except one from group 9. -meH is group 9, so nothing
                   can follow it.