enineera 发表于 2007-10-24 19:12:45

To double or not to double, that is a question!

Double the final consonant …
if the original word is one syllable: spinner
if the original word has its accent on the last syllable and the accent remains there after the suffix is added: dispelling, occurrences
if the original word is a prefixed word based on a one-syllable word: resetting

Do not double the final consonant …
if the accent is not on the last syllable or if the accent shifts when the suffix is added: murmured, reference
if the final consonants are x or w: waxing
when adding a suffix that begins with a consonant to word that ends in a consonant: dauntless, equipment
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