Answer: yes,
singular noun changes vowels when made plural
Step-by-step explanation:
some words are homophones. They may sound the same but are spelled differently. Here are some common homophones that a spell checker might not catch:
to / too / two
their / there / they’re
your / you're
Also remember these basic spelling rules as you edit:
The letter i comes before e except after c (believe, ceiling).
Double the final consonant before adding an ed, ing, er, or other suffix that begins with a vowel. For example, the word hot becomes hottest, and stop becomes stopped.
Make sure you know how to spell nouns correctly in their singular and plural forms. For many nouns, you just add an s or es to make them plural. But some nouns don’t follow this rule. For example the singular noun child becomes the plural noun children. And the noun loaf becomes loaves.