Unit 9 - The Spelling Rules for Adding Suffixes

Teaching point - learning to spell A suffix is a letter or a group of letters added to a word to change its meaning. Some examples:

English spelling
 
help + s = helps help + ing = helping help + ed = helped
help + er = helper help + ful = helpful help + less = helpless
helpful + ness = helpfulness helpful + ly = helpfully
 
English spelling
English spelling English spelling

In all the examples above, the root word did not change when the suffix was added. This unit will teach you when we do need to change the root word.

Suffixes come in two kinds: 'vowel suffixes' and 'consonant suffixes'.
The vowel suffixes start with a vowel.
The consonant suffixes start with a consonant.
Some examples:

English spelling
 
Vowel suffixes

ing es ed er
en est ish y
able ible al ous
 
English spelling
English spelling English spelling

English spelling
 
Consonant suffixes

s less ful ness
ment ly ty
 
English spelling
English spelling English spelling

Now try these:
Each sentence has one word with a suffix. Spot the suffix and think:
'Is it a vowel suffix or a consonant suffix?'
Select consonant or vowel. Remember y on the end is a vowel.
The first one has been done for you.


Spot the suffix and think: vowel or consonant?


Select consonant or vowel

When I broke my arm it was very painful. consonant
vowel
The plane landed with a hard bump. consonant
vowel
You look a lot cleaner after your bath. consonant
vowel
I can see sadness in his face. consonant
vowel
Let's all go sailing on Saturday. consonant
vowel
These blanket is dampish. consonant
vowel
The baby is quite restless tonight. consonant
vowel
The sun shone brightly all week. consonant
vowel
Add some flour to thicken the sauce. consonant
vowel
Is the mountain road passable in the snow? consonant
vowel
The fastest man won the race. consonant
vowel
The ground is dusty from lack of rain. consonant
vowel


 

Skip this exercise and go to the next part of this unit: Changing words when adding a suffix. *

* Skip link not available for logged in students.

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Unit 9: Adding suffixes: the spelling rules

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