klingon_grammar1-3  Exercise 3: Taking Nouns Apart
==================================================

  (a) yaSpu'chaj     yaS + pu' + chaj
                     officer + plural (Type 2) + their (Type 4)
                     "their officers"

  (b) DujmeywIj      Duj + mey + wIj
                     ship + plural (Type 2) + my (Type 4)
                     "my ships"

  (c) Qo'noSDaq      Qo'noS + Daq
                     Qo'noS + at/in (Type 5)
                     "on/at Qo'noS"

  (d) puqpu'vetlh    puq + pu' + vetlh
                     child + plural (Type 2) + that (Type 4)
                     "those children"

Why "Dujwijmey" would be rejected:

  It puts the possessive (Type 4) before the plural (Type 2). Noun suffixes
  must follow the fixed order Type 1, 2, 3, 4, 5, so the plural must come
  first: DujmeywIj. (The spelling is also wrong, as the I in -wIj must be a
  capital, but even with that corrected the order would break the rule.)