Doubling a Final Consonant
Double a final single consonant before a suffix beginning with a vowel when both of these conditions exist:
1) a single vowel precedes the consonant;
2) the consonant ends an accented syllable or a one-syllable word.
EXAMPLES:
stop + ing = stopping
admit + ed = admitted
occur + ence = occurrence
stoop + ing = stooping
benefit + ed = benefited
delight + ful = delightful
Interesting that!
EXAMPLES:
stop + ing = stopping
admit + ed = admitted
occur + ence = occurrence
stoop + ing = stooping
benefit + ed = benefited
delight + ful = delightful
Interesting that!