Language Arts Lesson 5
Vocabulary and Concept
Development (K-3)
Instruction 5-4
Plurals
Worksheet 6
www.etap.org
Name:__________________
Date:__________________
Plurals Ending in “o”
Rule: If a word ends in “o” and the letter before it is a vowel, then you add an “s”
to make it plural. However, most ending in "o" before a consonant, you add an "es" to
make it plural. Of course, there are exceptions to that rule! (piano = pianos). Some words
have two spellings that are correct. (buffaloes and buffalos)
Example:
singular word
radio
radio + s
Plural word
radios
(vowel before “o”)
singular word
tomato
tomato + es
(consonant before “o”)
Directions: Write the plural form of the following words.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
1 of 2
video
hero
ratio
veto
dingo
cameo
volcano
duo
potato
gecko
© B. J. Subbiondo 2002
Plural word
tomatoes
Language Arts Lesson 5
Vocabulary and Concept
Development (K-3)
Instruction 5-4
Plurals
Worksheet 6
www.etap.org
Name:__________________
Date:__________________
Answer Key
Plurals Ending in “o”
Rule: If a word ends in “o” and the letter before it is a vowel, then you add an “s”
to make it plural. All other words ending in “o” you add an “es” to make it plural.
Example:
singular word
radio
radio + s
Plural word
radios
(vowel before “o”)
singular word
tomato
tomato + es
(consonant before “o”)
Directions: Write the plural form of the following words.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
2 of 2
video
hero
ratio
veto
dingo
cameo
volcano
duo
potato
gecko
videos
heroes
ratios
vetoes
dingoes
cameos
volcanoes
duos
potatoes
geckoes
© B. J. Subbiondo 2002
Plural word
tomatoes