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Unit 9: Adding suffixes: the spelling rules

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Unit 9: Suffixes: why we need to double letters, change them or drop 'e'

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The Spelling Rules for Adding Suffixes:

The Doubling Rule

The doubling rule is only needed for vowel suffixes.

If you are adding a vowel suffix to a short vowel word that ends with a vowel followed by one consonant (VC), you double the consonant.

 Listen to these examples:
  Right Wrong
stop + ed stopped stoped
dig + ing digging diging
fat + er fatter fater

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Learn the Words: Words with doubled letters

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