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9.2: Review of Twinning and Silent Final <e> Deletion

Difficulty Level: At Grade Created by: CK-12
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Review of Twinning and Silent Final <e> Deletion

1. Twinning Rule. You twin the final consonant of a stem that has one vowel sound whenever you add a suffix that starts with a vowel and the stem ends CVC. You twin the final consonant of a word that has two or more vowel sounds whenever you add a suffix that starts with a vowel and the stem ends CVC and the stem has strong stress on the final vowel before and after you add the suffix.

2. Combine the following stems with their suffixes. Some combine by simple addition and some with twinning. Show any cases of twinning. Be ready to explain why twinning does or does not occur in each case:

Stem + Suffix = Word
compel + l + ing = compelling
debt + or =
slam + ed =
god + ess =
cruel + est =
god + ly =
rumor + ed =
knit + ing =
permit + s =
collect + ed =
build + ing =
exhibit + ed =
admit + ing =
twin + ing =
foreign + er =
develop + ing =
boot + ed =
blossom + ed =
chew + y =
ruin + ed =

3. Silent Final <e> Deletion Rule. You delete a final <e> that marks a soft <c> or soft <g> when you add a suffix that begins with the letters <e>, <i>, or <y>. You delete all other silent final <e>'s whenever you add a suffix that starts with any vowel.

4. Combine the following stems and suffixes. Some combine through simple addition and some with final <e> deletion. Show any final <e>’s that are deleted as we have done with the first one:

Stem + Suffix = Word
lose + er = loser
bruise + es =
collapse + ing =
influence + ed =
juice + y =
acknowledge + ing =
acknowledge + able =
routine + ly =
cruise + ing =
loose + ness =
costume + er =
continue + ous =
nonsense + ic + al =
clothe + ing =
absolute + ly =
commerce + ial =
balance + able =
nuisance + es =
collide + ing =
loose + en =
choose + y =
overdose + ed =
accommodate + ion =

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Grades:
1 , 2 , 3 , 4 , 5
Date Created:
Feb 23, 2012
Last Modified:
Oct 09, 2015
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