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5.11: Hearing -s and -es in Verbs

Difficulty Level: At Grade Created by: CK-12

1. The suffixes -s and -es are pronounced different ways. These four verbs contain the suffixes -s or -es. Analyze each verb into its free stem and suffix

Verb = Free Stem + Suffix
weighs = +
knocks = +
flashes = +
cries = +

2. Say the four verbs very carefully: weighs, knocks, flashes, cries

In weighs -s is pronounced [z].

In knocks -s is pronounced [s].

In flashes -es is pronounced [iz].

In cries -es is pronounced [z].

But although -s is sometimes pronounced [z] and sometimes [s], it is always spelled <\text{s}>. And although -es is sometimes pronounced [iz] and sometimes [z], it is always spelled <es>.

3. Say each of the following verbs. In the column to the right of each one write out the pronunciation of the -s or -es suffix

Verb Suffix Verb Suffix Verb Suffix
gives [z] grows finishes
trips lets holds
fixes fizzes waits
strikes says matches
buttons flashes remixes
digests hurries seems
presses talks shapes
weighs attaches obeys
unlocks taxes dresses
fastens coughs sniffs

4. Combine the following elements into longer words. Show any twinning, final <e> deletion, and changes of <y> to <\text{i}> :

Element = Words
match + ed =
un + hurry + ed =
tax + es =
cough + ing =
obey + ing =
un + bar + ed =
re + weigh + ed =
un + color + ed =
re + shape + ing =
re + finish + er + s =
button + s =
company + es =

5. Write down some verbs from this lesson in which the suffixes -s and -es have their different pronunciations:

Suffixes Verbs
-s = [s] in
-s = [z] in
-es = [iz] in
-es = [z] in

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Grades:

1 , 2 , 3 , 4 , 5

Date Created:

Feb 23, 2012

Last Modified:

Jan 16, 2015
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CK.ENG.ENG.SE.1.Basic-Speller.5.11

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