Name _______________________________________

Lesson 3   Plurals of words that end with o


studio + s = studios echo + es = echoes
radio + s = radios hero + es = heroes
rodeo + s = rodeos potato + es = potatoes
stereo + s = stereos tomato + es = tomatoes
patio + s = patios
ratio + s = ratios
igloo + s = igloos
banjo + s = banjos
piano + s = pianos
kangaroo + s = kangaroos
zero + s = zeros
lasso + s = lassos
halo + s = halos
silo + s = silos
TERMS TO KNOW:  Singular means one. Plural means more than one.

1.The words in the first column are singular. What is the last letter of each word?

______

 
2.What letter has been added to the first fourteen words to make them plural?

______

 
3.What letters have been added to the remaining four words to make them plural?

______


Lesson Generalization
Most nouns are made plural by adding the letter s. Most nouns that end with the letter o are also made plural by adding the letter s. A few nouns that end with o are made plural by adding es.


© McDougal Littell Inc. Grade 6 Spelling SkillBuilders