Here's another group of words which cause many people to make mistakes. Once again, the difficulty is to decide whether or not to double the final consonant of the base word when adding a suffix. And, once again, there's a pattern to help you out.
    Read the following words aloud and try to decide where you place the stress or emphasis:
     profit  target  enter  order
     begin  equip  regret  commit
    You should notice that in the top line you stressed the first syllable. And in the bottom lineyou stressed the second syllable. Like this:
     profit  target  enter  order
     begin  equip  regret  commit
    Here's the pattern that you'll find helpful:
    If the stress is on the first syllable the base word doesn't change:
    profit + able = profitable; and enter + ed = entered
    If the stress is on the last syllable, you double the final consonant before adding a vowel suffix:
    begin + ing = beginning; and equip + ed = equipped
    (No change if a consonant suffix is added so: equip + ment = equipment)
    This pattern is so valuable that it's worth memorizing it. Use the pattern to add suffixes to the following:
    First syllable stressed Second syllable stressed
     garden + er    forget + able  
     limit + ed    begin + ing  
     order + ing    occur + ing  
     alter + ation    omit + ed  
     market + ing    regret + ful  

    Check the answers here .before memorizing the focus words
    Click here for the the next suffix lesson

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Suffix 5

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Focus Words