Mistake: Do vs Does

Use does with he/she/it.

Examples

• She does her homework.

Key rules

• Use does with he, she and it in the present simple negative and question
• Use do with I, you, we and they
• The main verb after does has no -s

Common mistakes

• She does not likes it → She does not like it
• Does he likes it? → Does he like it?

Use cases

• Asking questions
• Talking about habits
• Negative sentences