Language Arts Grade Four

Unit Three, Lesson Four: The -ED Suffix

  1. thick
  2. quick
  3. click
  4. chicken
  5. lack
  6. smack
  7. attack
  8. spring
  9. jumping
  10. yucca
  1. cactus
  2. prickly
  3. pear
  4. barrel
  5. soil
  6. roots
  7. plants
  8. rainfall
  9. evaporate
  10. thorn
The -ed Suffix

RULE ONE: Just add -ed. Example: nail + ed = nailed. 


	This rule applies to most verbs. But there are exceptions
	which follow the rules shown below.
RULE TWO: Just add d. Example: use + ed = used. 

	Many verbs which end with an e can be dealt with in this
	way. But, again, there are exceptions.
RULE THREE: Double the last letter and add -ed. Example: drop + ed = dropped. 

	Verbs that end with a single consonant which 
	follow a single vowel follow this pattern.
	Examples: slap + ed = slapped, pat + ed = patted, 
	shred + ed = shredded, drag + ed = dragged,
RULE FOUR: Drop the y and add -ied. Example: try + ed = tried 

	Verbs that end with y (when the y does not have a single
	vowel in front of it) follow this pattern.
RULE BREAKERS: There are some irregular verbs that don't follow the add -ed rule. 

	EXAMPLES: ride/rode, read/read, run/ran, dig/dug, drink/drank.

Click here to go to next page