Language Arts Grade Six

Unit Six, Lesson Two: Irregular Pluralization

  1. mask
  2. trash
  3. flash
  4. gash
  5. flask
  6. geology
  7. landforms
  8. basin
  9. range
  10. plateau
  1. valley
  2. summit
  3. pass
  4. trail
  5. route
  6. survive
  7. beaver
  8. trapper
  9. individual
  10. rugged
Irregular Pluralization

A couple more examples of irregular pluralization are: 


	SINGULAR NOUN		PLURAL NOUN
	  phenomenon		  phenomena
	  alga			  algae
	  ox			  oxen
Here are a couple of nouns which can be pluralized in two ways: 

	octopus

	option one: octopi

	option two: octopuses

    -----------------

	nucleus

	option one: nuclei 

	option two: nucleuses
Recall that there are three basic rules for pluralizing nouns: 
                                                                                
        1. DROP THE Y AND ADD -IES
            Use on words which end with Y like: city/cities, fly/flies
            But not on words like: boy/boys, bay/bays
                                                                                
        2. ADD -ES
            Use on words which end with ss, ch, x, or sh: peach/peaches
                                                                                
        3. JUST ADD -S
            Use on most words like: dog/dogs, cat/cats, chair/chairs

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