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After an affirmative sentence, the standard question tag used to seek confirmation has a negative form: The room is ready, isn't it? The tag repeats the auxiliary or modal verb, while the subject is replaced with the appropriate pronoun.

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Affirmative sentence + negative question tag

Why add a question tag

A question tag is a short question at the end of a statement. The speaker first expresses an idea and then invites the listener to confirm it.

The target pattern for this rule begins with an affirmative sentence and ends with a negative question tag. It is especially common in conversation when the speaker believes the information is true but wants to hear the other person's reaction.

In writing, put a comma before the tag and a question mark at the end.

How to build it

affirmative statement, negative auxiliary verb + pronoun?

verb / V
—
A word for an action or state, such as work or be. The pattern determines its form.
auxiliary
—
A helping verb used to form tenses, questions or negatives: do, have, be.
pronoun
—
A word used instead of naming a person or thing: I, you, she, it, they.

The room is ready, isn't it?

The room is ready, isn't it?

The speaker believes the room is ready and asks for confirmation; the affirmative is ready combines with the negative isn't it.

You work nearby, don't you?

You work nearby, don't you?

The main idea is affirmative; the short negative tag invites the listener to confirm it.

Polarity: affirmative → negative

First, check the main clause. If it contains no negation and states a fact, the target tag needs not.

In an ordinary question tag, the negative is usually contracted: is not → isn't, do not → don't, did not → didn't. In exercises requiring the exact form, use the standard contracted tag.

An affirmative main clause with an affirmative tag can also occur in English, but it conveys a different intention, such as surprise or genuine checking. This is a different grammatical pattern, not necessarily an error in itself.

How to build it

affirmative clause → contracted negative question tag

clause
—
A construction with a verb, often with its own subject: when I arrived. A non-finite clause may leave the subject unspoken: to get home.

Mira lives here, doesn't she?

Mira lives here, doesn't she?

Lives here is affirmative; doesn't she is the negative tag used to seek confirmation.

So you met Mira, did you?

So you met Mira, did you?

Both parts are affirmative; this is a possible different type of tag with a sense of new discovery, so it is not the target “affirmative → negative” pattern.

Be and an existing auxiliary verb

If the main clause already contains be, have as an auxiliary, or another auxiliary verb, use it in the tag. Change only the polarity: is → isn't, are → aren't, was → wasn't, have → haven't.

The tense in the tag must match the main clause. Do not combine was with isn't, or have finished with don't.

Do not copy the full predicate. The tag contains only the auxiliary verb and a short subject pronoun.

How to build it

clause with be/have/an auxiliary, the same auxiliary + not + pronoun?

clause
—
A construction with a verb, often with its own subject: when I arrived. A non-finite clause may leave the subject unspoken: to get home.
auxiliary
—
A helping verb used to form tenses, questions or negatives: do, have, be.
pronoun
—
A word used instead of naming a person or thing: I, you, she, it, they.

The shop was open, wasn't it?

The shop was open, wasn't it?

The past form was is repeated in the negative form wasn't; the shop is replaced with it.

They have finished, haven't they?

They have finished, haven't they?

Have is the auxiliary in the Present Perfect, so the tag repeats have rather than adding do.

Do, does, or did when there is no auxiliary

In an affirmative Present Simple sentence with an ordinary verb, there is no separate auxiliary. Build the tag with don't or doesn't.

Use doesn't with he, she, it, and the corresponding singular noun; use don't with I, you, we, they, and plural nouns. Do not repeat the main verb.

In an affirmative Past Simple sentence with an ordinary verb, use didn't for all persons. The form arrived or called in the main clause indicates the past tense.

How to build it

Present Simple: don’t/doesn’t + pronoun?; Past Simple: didn’t + pronoun?

pronoun
—
A word used instead of naming a person or thing: I, you, she, it, they.

Noah works here, doesn't he?

Noah works here, doesn't he?

Works is Present Simple, and the subject Noah corresponds to he, so doesn't he is required.

The buses arrived early, didn't they?

The buses arrived early, didn't they?

Arrived is Past Simple; the tag uses didn't, and the plural the buses is replaced with they.

The modal verb is repeated

With can, could, will, would, and should in this basic pattern, repeat the modal verb in its negative form. Other modal constructions may have special features, so do not apply this pattern automatically to every case.

Do not replace the modal verb with do or be. After You can join, the correct tag is can't you, and after She will call, it is won't she.

The contractions can't and won't are not formed by simply adding n’t to the spellings can or will, so their forms must be memorized.

How to build it

can/could/will/would/should → negative form in the tag

You can stay, can't you?

You can stay, can't you?

Can is repeated in the negative form can't; the subject you does not change.

Lena will call, won't she?

Lena will call, won't she?

Will changes to the contracted form won't, and the name Lena is replaced with she.

The subject in the tag is a short pronoun

In a standard tag, replace a noun or name from the main clause with a pronoun: Marta → she, Mr Lee → he, the phone → it, the students → they.

The pronoun must preserve person and number. Use they for two people or for plural subjects; the form for you does not change.

After I am, the standard negative tag is aren't I. This is an established exception: I'm next, aren't I?

How to build it

subject → corresponding pronoun; I am → aren’t I?

subject / S
—
The grammatical subject: who or what the clause is about; the verb agrees with it. In The book was written, the book is the subject, although someone else does the action.
pronoun
—
A word used instead of naming a person or thing: I, you, she, it, they.

These keys are yours, aren't they?

These keys are yours, aren't they?

The plural these keys is replaced with they; are is repeated as aren't.

I'm on the list, aren't I?

I'm on the list, aren't I?

After an affirmative I am, standard English uses the special form aren't I.

Limits of the rule and carrying it into conversation

This rule practices only an affirmative main clause with a negative tag. A negative sentence with an affirmative tag, a tag after a command, and let's + shall we belong to neighboring patterns.

Intonation can show the degree of confidence: a falling tone often sounds like expected confirmation, while a rising tone sounds like a less confident check. The text-based self-check here evaluates meaning and grammatical form, not pronunciation or speech melody.

Before producing your own sentence, take four steps: formulate a positive idea, identify its auxiliary or tense, form the negative, and replace the subject with a pronoun. Natural wording may differ from the example if these decisions and the communicative intention are preserved.

How to build it

idea → affirmative statement → required negative auxiliary → pronoun?

auxiliary
—
A helping verb used to form tenses, questions or negatives: do, have, be.
pronoun
—
A word used instead of naming a person or thing: I, you, she, it, they.

The meeting starts at nine, doesn't it?

The meeting starts at nine, doesn't it?

The speaker expects the time to be correct and asks for confirmation using the target form.

The meeting doesn't start at nine, does it?

The meeting doesn't start at nine, does it?

This is the grammatical pattern “negative statement + affirmative tag,” but it falls outside the scope of the current rule.

Common mistakes

Incorrect:She likes coffee, isn't she?

Correct:She likes coffee, doesn't she?

In the Present Simple with an ordinary verb, likes requires does; there is no be in the main clause.

Incorrect:They arrived early, don't they?

Correct:They arrived early, didn't they?

Arrived is in the Past Simple, so the tag must also use the past tense: didn't.

Incorrect:Mark can swim, doesn't he?

Correct:Mark can swim, can't he?

The modal can is repeated in the tag; the auxiliary do is not needed here.

Incorrect:The keys are here, isn't it?

Correct:The keys are here, aren't they?

The plural the keys requires the pronoun they and the corresponding form of are.

Incorrect:You have finished, don't you?

Correct:You have finished, haven't you?

Have is the auxiliary in the Present Perfect, so it is repeated in the tag.

Incorrect:I'm next, isn't I?

Correct:I'm next, aren't I?

The standard negative tag after I am has the established form aren't I.

Sources

Negative statement + affirmative question tag

Why add a question tag?

A question tag is a short question added after a statement. It checks an assumption or invites confirmation: You don’t need a ticket, do you? A full question is also possible, but does not start from an already stated assumption in this form.

In this rule, the main clause is already negative, so the ordinary tag is affirmative. First understand the statement, then build the short form without changing its tense or participant.

How to build it

negative statement, affirmative auxiliary / modal + pronoun?

auxiliary
—
A helping verb used to form tenses, questions or negatives: do, have, be.
modal
—
A modal verb expresses meanings such as ability, possibility or necessity: can, may, must.
pronoun
—
A word used instead of naming a person or thing: I, you, she, it, they.

You don't need a ticket, do you?

You don't need a ticket, do you?

Don’t makes the statement negative; the tag uses affirmative do.

The café isn't open, is it?

The café isn't open, is it?

After isn’t, use affirmative is and replace the café with it.

Changing polarity

The target pattern reverses polarity: negative statement → affirmative tag. The affirmative tag has no not: don’t becomes do, isn’t becomes is, haven’t becomes have, can’t becomes can.

The negative main clause stays unchanged. The tag does not cancel the negative; it asks for confirmation of the whole statement.

How to build it

isn’t → is; don’t/doesn’t → do/does; didn’t → did; haven’t/hasn’t → have/has; can’t/won’t → can/will

Maya doesn't drive, does she?

Maya doesn't drive, does she?

The statement has doesn’t, so the affirmative tag starts with does.

They didn't call, did they?

They didn't call, did they?

The past simple with didn’t retains its past tense through did in the tag.

The corresponding auxiliary or modal

If the statement already contains be, auxiliary have or a modal such as can, will or should, repeat the same type and tense in affirmative form. Do not replace is or can with do. The specific form agrees with the tag’s pronoun: Nobody is here, are they?

In negative present simple or past simple statements with a main verb, the clue is visible in doesn’t, don’t or didn’t. Remove not and retain does, do or did. After I am not, the affirmative tag is am I?.

How to build it

main-clause auxiliary / modal → corresponding affirmative form in the tag

clause
—
A construction with a verb, often with its own subject: when I arrived. A non-finite clause may leave the subject unspoken: to get home.
auxiliary
—
A helping verb used to form tenses, questions or negatives: do, have, be.
modal
—
A modal verb expresses meanings such as ability, possibility or necessity: can, may, must.

Leo hasn't finished, has he?

Leo hasn't finished, has he?

The present perfect has hasn’t, so the tag starts with has.

We can't park here, can we?

We can't park here, can we?

Modal can’t gives affirmative can; no do is needed.

I'm not late, am I?

I'm not late, am I?

After negative I am not, the affirmative tag is am I?.

The subject becomes a pronoun

The auxiliary is followed by a pronoun representing the subject: Sara → she, Tom → he, the phone → it, the students → they, you and I → we. Person and number must match.

Do not copy the full noun phrase into the tag. Brevity is part of the question-tag form.

How to build it

name or noun phrase → matching pronoun

NP / noun phrase
—
A noun phrase: a noun with its dependent words, such as the new student; the pattern treats it as one group of words.
noun
—
A word naming a person, thing or idea: student, book, happiness.
pronoun
—
A word used instead of naming a person or thing: I, you, she, it, they.

Nora isn't busy, is she?

Nora isn't busy, is she?

Nora is replaced by she.

The lights aren't on, are they?

The lights aren't on, are they?

Plural the lights requires they rather than it.

Never, nobody and nothing also make the meaning negative

Not every negative statement contains not. Never, nobody, no one, nothing and nowhere already have negative meaning, so standard question tags after them are affirmative.

At this level, recognise clear examples with never, nobody/no one and nothing. Do not add another not to the verb: Nobody called is a standard statement with negative meaning.

How to build it

never / nobody / nothing in the statement → affirmative tag

The buses are never early, are they?

The buses are never early, are they?

Never makes the meaning negative, so the tag uses affirmative are.

Nobody has called, have they?

Nobody has called, have they?

Nobody has negative meaning; the neutral tag pronoun is they.

Nothing is broken, is it?

Nothing is broken, is it?

Nothing has negative meaning; the tag uses it for the thing.

Conversational meaning and intonation

A question tag often shows that the speaker has an assumption and wants confirmation. You haven’t met Ana, have you? usually conveys “I think you haven’t met; confirm or correct me”.

In speech, falling intonation often conveys greater confidence, while rising intonation expresses genuine uncertainty. This text-based trainer checks form and conversational appropriateness, rather than pronunciation or intonation.

You haven't booked a table, have you?

You haven't booked a table, have you?

The speaker checks an assumption that no table has been booked.

It won't rain, will it?

It won't rain, will it?

Will it? seeks confirmation of a negative forecast while preserving future meaning.

The limits of this rule

An affirmative statement with a negative tag is a neighbouring pattern: She is ready, isn’t she? Here it is used only for contrast. We also do not practise tags after commands or let’s, or fixed conversational tags such as right? and yeah?.

Affirmative tags after affirmative statements are also possible with another meaning, often surprise or checking. They are not universally wrong, but are outside this A2 rule’s target. In tasks, assess the explicitly requested pattern rather than treating other grammatical intentions as impossible.

She isn't ready, is she?

She isn't ready, is she?

The target pattern: a negative main clause plus an affirmative tag.

She is ready, isn't she?

She is ready, isn't she?

A grammatical neighbouring contrast, belonging to the rule on affirmative main clauses.

Common mistakes

Incorrect:You don't like coffee, don't you?

Correct:You don't like coffee, do you?

After negative don’t, the target question tag requires affirmative do.

Incorrect:Mia isn't at home, does she?

Correct:Mia isn't at home, is she?

The main clause has be, so the tag repeats is rather than introducing do.

Incorrect:The buses didn't stop, did it?

Correct:The buses didn't stop, did they?

Plural the buses is replaced by they.

Incorrect:We can't park here, do we?

Correct:We can't park here, can we?

Repeat modal can in the tag; do is not needed.

Incorrect:Nobody called, didn't they?

Correct:Nobody called, did they?

Nobody already has negative meaning, so the standard tag is affirmative.

Sources

Question tags: agreement of the auxiliary verb

Why a tag is needed

A question tag is a short question after a statement. It helps check information or invite the other person to agree. In this rule, the main skill is to find the statement’s verb support and transfer the correct auxiliary verb to the tag.

First identify the polarity: after an affirmative statement, the typical tag is negative, and after a negative statement, it is affirmative. Then make the auxiliary verb and pronoun agree. Polarity is practised in detail in neighboring rules, but without it, you cannot form a complete tag.

How to build it

statement, auxiliary verb + pronoun?

verb / V
—
A word for an action or state, such as work or be. The pattern determines its form.
auxiliary
—
A helping verb used to form tenses, questions or negatives: do, have, be.
pronoun
—
A word used instead of naming a person or thing: I, you, she, it, they.

The room is ready, isn't it?

The room is ready, isn't it?

The statement contains the form be is, so we keep is in the negative tag: isn't it.

The room isn't ready, is it?

The room isn't ready, is it?

The negative isn't changes the tag’s polarity, but the verb support remains is.

Three-step algorithm

Step 1: find the first auxiliary or modal verb in the predicate. This may be a form of be, have, can, or will. Step 2: if there is no such verb and the statement is in the Present Simple or Past Simple, choose do, does, or did. Step 3: change the polarity and put after the auxiliary the pronoun that replaces the subject.

Tense and person do not change. The Present Simple with he, she, or it requires does; other persons use do. The Past Simple requires did for all persons. Do not copy the lexical verb into the tag.

How to build it

auxiliary present → repeat it; no auxiliary → do/does/did

auxiliary
—
A helping verb used to form tenses, questions or negatives: do, have, be.

Nora works here, doesn't she?

Nora works here, doesn't she?

Works is a lexical verb in the Present Simple, and the subject Nora = she, so doesn't is required.

The guests arrived early, didn't they?

The guests arrived early, didn't they?

In an affirmative Past Simple statement, there is no separate auxiliary verb, so the tag uses did in the negative form.

Forms of be remain forms of be

If be is the main verb or helps build a continuous form, repeat its form in the tag: is, are, was, or were. Do not add do here.

Replace a noun subject in the tag with a pronoun: the printer → it, Maya → she, the keys → they. This is a supporting skill for this rule: the correct auxiliary verb with the wrong pronoun does not make a correct tag.

How to build it

is↔isn't; are↔aren't; was↔wasn't; were↔weren't

Maya is waiting outside, isn't she?

Maya is waiting outside, isn't she?

The Present Continuous already has is; that same verb moves into the tag.

The keys weren't on the desk, were they?

The keys weren't on the desk, were they?

The negative weren't gives the affirmative were, and the plural subject the keys is replaced by they.

Do, does, and did with lexical verbs

In an affirmative Present Simple or Past Simple statement with an ordinary lexical verb, there is no separate auxiliary verb. The tag then adds do or does for the present and did for the past.

If the statement already contains don't, doesn't, or didn't, repeat the corresponding form without not in the affirmative tag: do, does, or did. Choose the form according to the grammar of the statement, not according to the nearest word.

How to build it

works→doesn't; work→don't; arrived→didn't; didn't arrive→did

You take this bus, don't you?

You take this bus, don't you?

Take is in the Present Simple with you, so the tag has do.

Leo didn't call, did he?

Leo didn't call, did he?

The statement already contains didn't; the affirmative tag repeats did.

The Perfect has have or has

In the Present Perfect, have or has is the auxiliary verb. The tag uses that same verb: have with I, you, we, and they, and has with he, she, and it. Do not replace it with do or does.

Here we practise only unambiguous Perfect examples with have/has + V3. Ordinary have meaning possession and the have got construction can have different patterns in different varieties of English, so they are not included in this lesson’s closed answer keys.

How to build it

have/has + V3 → have/has in the tag

V3 / past participle
—
The third verb form: worked, gone, seen. Used after have/has or in the passive, for example; it is not always the same as V2.

They've received the link, haven't they?

They've received the link, haven't they?

They've = they have, so the tag repeats have in the form haven't.

Ms Lee hasn't replied, has she?

Ms Lee hasn't replied, has she?

The negative hasn't gives the affirmative has; the clearly female subject Ms Lee becomes she in the tag.

The modals can and will

If the statement contains the modal can or will, the same modal verb forms the tag. Do not use do, does, or did with modals.

Learn the contracted negative forms as complete words: can → can't, will → won't. In this A2 lesson, we actively practise can and will, which are directly specified by the rule; the wider system of modal forms is left for later topics.

How to build it

can↔can't; will↔won't

Ella can join us, can't she?

Ella can join us, can't she?

Can is already in the statement, so the tag does not need does.

You won't forget, will you?

You won't forget, will you?

After the negative won't, use the affirmative will with the same subject, you.

The special case of I am and the limits of this lesson

In neutral standard English, use aren't I? after an affirmative I am: I'm early, aren't I? After the negative I'm not, the ordinary affirmative tag am I? is possible. This is a separate fixed form, not a signal to replace am with are in other sentences.

Intonation can show how confident the speaker is, but the text-based exercise does not assess it. We also do not practise tags after imperatives and let's, rare modal constructions, or same-polarity tags used to express surprise. The goal is to confidently make the auxiliary verb agree in standard tags of opposite polarity.

How to build it

I am ... , aren't I?; I'm not ... , am I?

I'm on the guest list, aren't I?

I'm on the guest list, aren't I?

The standard negative tag after I am has the form aren't I.

I'm not too late, am I?

I'm not too late, am I?

After the negative I'm not, the tag is affirmative: am I.

Common mistakes

Incorrect:He is ready, doesn't he?

Correct:He is ready, isn't he?

The statement contains the main verb is, so the tag repeats is rather than adding does.

Incorrect:Marta works here, isn't she?

Correct:Marta works here, doesn't she?

Works is a lexical verb in the Present Simple with she; without a separate auxiliary verb, does is required.

Incorrect:They finished early, don't they?

Correct:They finished early, didn't they?

Finished establishes the Past Simple, so the auxiliary in the tag must be did.

Incorrect:You've sent the file, don't you?

Correct:You've sent the file, haven't you?

You've sent is the Present Perfect with the auxiliary have, so the tag uses haven't.

Incorrect:She can drive, doesn't she?

Correct:She can drive, can't she?

The modal can forms the tag itself; do is not added with it.

Incorrect:The keys are here, aren't it?

Correct:The keys are here, aren't they?

The auxiliary are is correct, but the plural subject the keys must be replaced by the pronoun they.

Incorrect:I'm first, isn't I?

Correct:I'm first, aren't I?

The standard negative tag after an affirmative I am has the fixed form aren't I.

Sources
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