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Unit 34: Adding suffixes to longer words

Page 5 of 7

Unit 34: Adding suffixes to longer words – double or not?

Unit StartCourse Test: Review: Suffix rules; Stressed syllables - Spelling testPage 2: Review: Suffix rules; Stressed syllables - Spelling testCourse Test: The suffixing rules for longer words. Spelling testPage 4: The suffixing rules for longer words. Spelling testCourse Test: More on these rules. Spelling testPage 6: More on these rules. Spelling testPage 7: Rules and rule breakers: Words ending in l.Unit End

Page 5 of 7

Adding Suffixes to Longer Words

Teaching point - learning to spell Two more things to think about:

1. Sometimes, adding a suffixes changes which syllable we stress. Take this example:

English spelling
 
prefer: I would prefer to stay in tonight.
preferred: She preferred the pink dress to the blue one.
preference: He has a preference for classical music.
 
English spelling
English spelling English spelling

We still follow the rule. In preferred, the stress remains on the second syllable and we double the letter r.

In preference, the stress has shifted to the first syllable, so we do not double the letter r.


2. Long vowel sounds and those spelled with two letters do not need doubling.

English spelling
 
remain + ing = remaining avoid + ance = avoidance
 
English spelling
English spelling English spelling

Now try these:

Add the suffix to the root word

Type the whole word:

omit + ed
equip + ment
confer + ing
confer + ence
forbid + en
forget + ful
contain + er
benefit + ing
commit + ed
focus + ing
develop + ed
transmit + er


Skip this exercise and go to the next part of this unit: Rulebreakers for adding suffixes to longer words. *

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