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Question Tags: …, isn't it?

B1 Grammar

📖 16 min read + practice⚡ Intermediate difficulty❓ 50-question quiz included
B1 · Lesson 13 of 14 in this level

1. Simple explanation

A question tag is a tiny question added to the end of a sentence: 'You are tired, aren't you?' The tag is built from the statement's own verb and subject. The rule is a mirror: if the statement is positive, the tag is negative ('She is here, isn't she?'); if the statement is negative, the tag is positive ('She isn't here, is she?'). Use tags to check something you believe or to ask someone to agree with you.

2. Detailed explanation

Start from zero. A question tag is a tiny question — usually two or three words — that English speakers stick onto the end of a normal sentence: 'You're tired, aren't you?' The normal sentence part is called the statement ('You're tired'), and the little piece at the end is the tag ('aren't you?'). People use tags for two jobs: to check something they believe is true ('The train leaves at six, doesn't it?'), and to invite agreement. The tag is a shortcut built from pieces of the statement itself.

The golden rule is the mirror rule: a positive statement takes a negative tag, and a negative statement takes a positive tag — the tag always shows the opposite face. 'She is friendly, isn't she?' (positive → negative). 'She isn't friendly, is she?' (negative → positive). In tags, negative verbs almost always use the short joined form, called a contraction: is not → isn't, do not → don't, cannot → can't. A positive tag stays short and plain: 'is she?', 'do they?'

How do you build one? The tag copies the statement's helper verb — the small verb in front of the main action (is, was, do, did, have, can, will). If the statement uses BE, the tag uses BE: 'He was late, wasn't he?' With plain action verbs in the present there is no helper in the statement, so the tag borrows do or does: 'You like pizza, don't you?' 'She works here, doesn't she?' In the past it borrows did: 'They left early, didn't they?' Perfect tenses use have or has: 'You've seen it, haven't you?' Modals — can, will, must, should — repeat themselves: 'She can swim, can't she?' And the tag's subject is always a short pronoun (he, she, it, they), never the name again: 'Maria is ready, isn't she?'

A few special tags you must memorize as fixed pieces. With 'I am,' the negative tag is 'aren't I': 'I'm early, aren't I?' — standard English has no word 'amn't.' After 'Let's…' — a suggestion for you and me together — the tag is 'shall we?': 'Let's go, shall we?' After a command — an imperative, a sentence that orders or politely asks someone to do something, like 'Open the door' — the tag is 'will you?' (or softer 'won't you?'): 'Help me, will you?' Also: everybody and someone take 'they' in the tag ('Everyone is here, aren't they?'), and 'there' stays 'there': 'There's a problem, isn't there?'

Remember this first: the tag is a mirror. Positive statement, negative tag. Negative statement, positive tag. Copy the statement's helper verb, swap the subject for a pronoun, and flip the positive/negative face — you have built a correct tag. Then learn three special ones by heart: I am → aren't I, Let's → shall we, commands → will you. With the mirror rule plus those three, you can tag almost every sentence you say.

3. Formula / structure

Step by step — how to build a sentence:

1) Say your statement: 'She is a doctor.' 2) Find the helper verb (is). 3) Check the face: the statement is positive, so flip the tag to negative (isn't). 4) Change the subject to a pronoun (She stays 'she'). 5) Join them: 'She is a doctor, isn't she?' With an action verb there is no helper, so borrow one: 'He plays tennis.' → helper: does (present, he) → flip: doesn't → pronoun: he → 'He plays tennis, doesn't he?'

choosing the tag verb:

The tag copies the statement's verb system: BE → be ('wasn't he?'); present simple action → do/does ('don't you?' / 'doesn't she?'); past simple → did ('didn't they?'); present perfect → have/has ('haven't you?'); modals → the same modal ('can't she?' / 'won't you?').

negative statement → positive tag:

Statement with not/never + positive tag → She isn't ready, is she? / You don't smoke, do you? / They never call, do they?

positive statement → negative tag:

Statement + negative tag (always contracted) → She is ready, isn't she? / You like tea, don't you?

special tags:

I am → aren't I ('I'm late, aren't I?') · Let's → shall we ('Let's go, shall we?') · Commands → will you / won't you ('Sit down, will you?') · there is/are → isn't there / aren't there.

4. When to use it

5. When NOT to use it

6. Positive examples

7. Negative examples

8. Questions

9. Short answers

10. Common mistakes

✗ She is happy, is she?✓ She is happy, isn't she?Why: the mirror rule — a positive statement needs a negative tag. Using the same face sounds like an accusation, not a friendly check.
✗ You don't like tea, don't you?✓ You don't like tea, do you? (Why: the statement is already negativedon't), so the tag must flip to positive. Two negatives together are wrong here.
✗ He went home, isn't it?✓ He went home, didn't he?Why: the tag copies the statement's verb — 'went' is past simple, so the helper is 'did.' And the subject is 'he,' not 'it.'
✗ I'm late, amn't I?✓ I'm late, aren't I?Why: standard English has no word 'amn't.' The tag for 'I am' is always the special form 'aren't I.'
✗ Let's go, will we?✓ Let's go, shall we?Why: after 'Let's' — a suggestion for you and me — the fixed tag is 'shall we?' 'Will we' is only for real questions about the future.
✗ She can swim, doesn't she?✓ She can swim, can't she?Why: when the statement has a modal like can, the tag repeats the same modal. It does not switch to do/does.
✗ Open the window, shall you?✓ Open the window, will you? (Why: commands have no subject and no helper, so English uses the fixed tag 'will you?'or softer 'won't you?') to make them polite.

11. American English notes

🇺🇸 American English

Americans use question tags a little less than British speakers, and they often replace the tag with one all-purpose word: 'right?' — 'You sent the email, right?' In casual American speech you will also hear 'huh?' at the end ('Cold today, huh?'), but 'right?' is the safe, polite choice everywhere. When Americans do use full tags, they follow exactly the same mirror rule: 'You don't mind, do you?' Note also that American tags almost always use contractions: 'isn't it,' 'don't you,' 'can't she' — full forms ('is it not?') sound like a robot or a lawyer. With 'I am,' Americans say 'aren't I' just like everyone else ('I'm invited, aren't I?'); you may hear 'ain't I' in very informal regional speech, but do not copy it in careful English.

12. Similar grammar — comparison

Compare

Compare tags with full yes/no questions (the question-forms lesson): a full question asks for unknown information ('Do you like tea?' — the speaker really doesn't know). A tag is different: the speaker already believes the statement and is only checking or inviting agreement ('You like tea, don't you?'). Compare BE tags with action-verb tags: after BE, the tag repeats BE ('She is late, isn't she?'), but after a plain action verb there is no BE or have in the statement, so the tag must borrow do/does/did ('She left, didn't she?'). Misusing one system for the other is the classic error: ✗ 'She left, isn't she?'

13. Natural spoken English

14. Real-life examples

15. Mini dialogue

AOur flight leaves at nine, doesn't it?
BYes, it does. And we're at gate 12, aren't we?
ARight. You have the passports, don't you?
BI do. Your bag isn't too heavy, is it?
ANo, it isn't. It's under twenty kilos.
BGreat. It won't rain in Miami, will it?
ANo, it won't. It's always sunny there, isn't it?
BIt is. Let's get a coffee before the flight, shall we?

16. Summary

A tag mirrors its statement: positive statement → negative tag, negative statement → positive tag. The tag copies the statement's helper verb and uses a pronoun. Special tags: I am → aren't I, Let's → shall we, commands → will you.

17. Practice exercises

Warm up with the first questions, then take the full quiz — every answer has a detailed explanation (parts 19–20 of this lesson: answer key + explanations live inside the quiz feedback).

18. The full quiz

50 questions, mixed formats, in difficulty order: easy → medium → intermediate → challenging → advanced.

Take the 50-question quiz

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