Question Tags with Be and Do

Use opposite polarity in tags.

Examples

• You're tired, aren't you?
• She doesn't smoke, does she?

Key rules

• Positive statement + negative tag: You are tired, aren't you?
• Negative statement + positive tag: She doesn't smoke, does she?
• Use the same auxiliary as in the statement
• With no auxiliary use do/does/did

Common mistakes

• You like tea, don't it? → You like tea, don't you?
• She is late, isn't it? → She is late, isn't she?