Spelling of Third Person Singular

Note below on how to add suffixes to the third person singular:

1. We add -s to most verbs:

• talk - talks
• sing - sings
• leave - leaves
• swim - swims
• ring - rings

2. With verbs ending in -s, -ss, -ch, -sh, -o, -x, and -z we add -es to the verb.

• teach - teaches
• box - boxes
• fix - fixes
• kiss - kisses
• wish - wishes
• go - goes
• do - does

3. With verbs ending in "consonant + y", we change the -y to -i and add -es.

• cry - cries
• carry - carries
• deny - denies
• fly - flies
• hurry - hurries
• reply - replies
• study - studies
• worry - worries

But we do not follow the above rule if the form is "vowel + y":

• stay - stays
• play - plays
• betray - betrays
• decay - decays