Spelling Rules

Spelling rules

Add –es instead of –s if the base form ends in -s, -z, -x, -sh, -ch, or the vowel o (but not -oo). This adds an extra syllable to the word in spoken form. 
  • miss + es = misses         He misses her so much.

If the base form ends in consonant + y, remove the -y and add –ies:
  • rely --> relies                John relies on her mother
  • worry --> worries           My uncle worries about his son.