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4.7: Lesson Thirty-one

Created by: CK-12

More About Suffixes and <y> to <\mathrm{i}> Changes

1. Here is another chance for you to try out your new rule for spelling plural nouns. Add either -s or -es to each singular noun. Be sure to show any changes:

Singular Noun + Suffix = Plural Noun
abilit\cancel{y}+ i + es = abilities
dance + s = dances
six + es = sixes
yesterday + s = yesterdays
memor\cancel{\mathrm{y}}+ i + es = memories
demand + s = demands
match + es = matches
Wednesday + s = Wednesdays
famil\cancel{\mathrm{y}} + i + es = families
design + s = designs
crush + es = crushes
librar\cancel{\mathrm{y}}+ i + es = libraries
beaut\cancel{y}+ i + es = beauties
pattern + s = patterns
success + es = successes
attorney + s = attorneys

2. You've seen that <y> changes to <\mathrm{i}> when you add the suffix -es to singular nouns that end in a <y> with a consonant right in front of it. A <y> with a consonant in front of it changes to <\mathrm{i}> also when you add the suffixes -ed or -er or -est.

3. Watch for all kinds of changes when you combine the following words and suffixes to make new words:

Word' + Suffix = New Word
suppl\cancel{y} + i + er = supplier
bottl\cancel{e} + ed = bottled
arriv\cancel{e} + ing = arriving
stop + p + er = stopper
whit\cancel{e} + est = whitest
lik\cancel{e} + ed = liked
tr\cancel{\mathrm{y}} + i + ed = tried
us\cancel{e} + er = user
bat + t + ing = batting
surpris\cancel{e} + ed = surprised

4. Here are some to do the other way round:

Word = Shorter Word + Suffix
dancer = danc\cancel{e} + er
supplied = suppl\cancel{y} + i + ed
waltzing = waltz + ing
arrived = arriv\cancel{e} + ed
designer = design + ed
silier = sill\cancel{y} + i + er
phoning = phon\cancel{e} + ing
writer = writ\cancel{e} + er
guessing = guess + ing
pitcher = pitch + er

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Feb 23, 2012

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Apr 29, 2014
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CK.ENG.ENG.TE.1.Basic-Speller.4.7

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