A1

3rd person -s (spelling)

Definition / Explanation

In the present simple, most verbs change form with he, she, and it. We usually add -s, but some verbs take -es or change -y to -ies. This is a small grammar change, but it is very important because it appears in many everyday sentences. Learners often forget it, so it needs extra practice.

Key Rules

  • Add -s to most verbs: works, reads, eats.
  • Add -es after verbs ending in -s, -sh, -ch, -x, -o: watches, goes, fixes.
  • If a verb ends in consonant + y, change y to i and add -es: study -> studies.
  • If a verb ends in vowel + y, just add -s: play -> plays.
  • Only the verb changes. The rest of the sentence stays the same.

Examples

  • He works in a shop.
  • She watches TV at night.
  • My dad goes to work early.
  • Anna studies English after dinner.
  • The baby cries a lot.
  • It plays music when I open it.

Common Mistakes

  • ❌ He work in a shop. -> ✅ He works in a shop.
  • ❌ She study English every day. -> ✅ She studies English every day.
  • ❌ My brother go to school by bike. -> ✅ My brother goes to school by bike.

Tips

  • If you ask Who? and the answer is one person or one thing, check if you need -s.

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