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5.13: Sometimes -s is [z], Sometimes [s]

Difficulty Level: At Grade Created by: CK-12

1. Each of the following verbs ends with the suffix -s. Say each one carefully:


2. Sort the verbs into these two groups:

3. Analyze each of the verbs in which -s is pronounced [s] into its free stem and suffix:

Verbs with -s pronounced [s] = Free Stem + Suffix
elects = +
keeps = +
unlocks = +
talks = +
coughs = +
sniffs = +
waits = +
digests = +
strikes = +
unearths = +

Each of the free stems above should end with the sounds [p], [t], [f], [th], or [k].

4. When the suffix -s is added to a verb that ends in [p], [t], [f], [th], or [k], the -s is pronounced ______. Everywhere else the suffix -s is pronounced [z]. 

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Date Created:
Oct 09, 2015
Last Modified:
Apr 22, 2016
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