A tag question is a special construction in English. It is a statement followed by a mini-question. We use tag questions to ask for confirmation. They mean something like: "Is that right?" or "Do you agree?" They are very common in English.
The basic structure of a tag question is:
| positive statement | negative tag |
|---|---|
| Snow is white, | isn't it? |
| negative statement | positive tag |
|---|---|
| You don't like me, | do you? |
Notice that the tag repeats the auxiliary verb (or main verb when be) from the statement and changes it to negative or positive.
Look at these examples with positive statements. You will see that most of the time, the auxiliary verb from the positive statement is repeated in the tag and changed to negative.
| (+) positive statement | (-) negative tag | |||||
|---|---|---|---|---|---|---|
| subject | auxiliary | main verb | auxiliary | not | personal pronoun same as subject | |
| You | are | coming, | are | n't | you? | |
| We | have | finished, | have | n't | we? | |
| You | do | like | coffee, | do | n't | you? |
| You | like | coffee, | do | n't | you? | |
| They | will | help, | wo | n't | they? | |
| I | can | come, | can | 't | I? | |
| We | must | go, | must | n't | we? | |
| He | should | try | harder, | should | n't | he? |
| You | are | English, | are | n't | you? | |
| John | was | there, | was | n't | he? | |
Look at these examples with negative statements. Notice that the negative verb in the original statement is changed to positive in the tag.
| (-) negative statement | (+) positive tag | ||||||
|---|---|---|---|---|---|---|---|
| subject | auxiliary | main verb | auxiliary | personal pronoun same as subject | |||
| It | is | n't | raining, | is | it? | ||
| We | have | never | seen | that, | have | we? | |
| You | do | n't | like | coffee, | do | you? | |
| They | will | not | help, | will | they? | ||
| They | wo | n't | report | us, | will | they? | |
| I | can | never | do | it right, | can | I? | |
| We | must | n't | tell | her, | must | we? | |
| He | should | n't | drive | so fast, | should | he? | |
| You | wo | n't | be | late, | will | you? | |
| You | are | n't | English, | are | you? | ||
| John | was | not | there, | was | he? | ||
How do we answer a tag question? Often, we just say Yes or No. Sometimes we may repeat the tag and reverse it (They don't live here, do they? Yes, they do). Be very careful about answering tag questions. In some languages, an opposite system of answering is used, and non-native English speakers sometimes answer in the wrong way. This can lead to a lot of confusion!
For example, everyone knows that snow is white. Look at these questions, and the correct answers:
| tag question | correct answer | notes | |
|---|---|---|---|
| Snow is white, isn't it? | Yes (it is). | Answer is same in both cases - because snow is white! | But notice change of stress when answerer does not agree with questioner. |
| Snow isn't white, is it? | Yes it is! | ||
| Snow is black, isn't it? | No it isn't! | Answer is same in both cases - because snow is not black! | |
| Snow isn't black, is it? | No (it isn't). | ||
In some languages, people answer a question like "Snow isn't black, is it?" with "Yes" (meaning "Yes, I agree with you"). This is the wrong answer in English!
Here are some more examples, with correct answers:
The adverbs never, rarely, seldom, hardly, barely and scarcely have a negative sense. Even though they may be in a positive statement, the feeling of the statement is negative. We treat statements with these words like negative statements, so the question tag is normally positive. Look at these examples:
| positive statement treated as negative statement | positive tag |
|---|---|
| He never came again, | did he? |
| She can rarely come these days, | can she? |
| You hardly ever came late, | did you? |
| I barely know you, | do I? |
| You would scarcely expect her to know that, | would you? |
We can change the meaning of a tag question with the musical pitch of our voice. With rising intonation, it sounds like a real question. But if our intonation falls, it sounds more like a statement that doesn't require a real answer:
| intonation | |||
|---|---|---|---|
| You don't know where my wallet is, | do you? | / rising | real question |
| It's a beautiful view, | isn't it? | \ falling | not a real question |
Sometimes we use question tags with imperatives (invitations, orders), but the sentence remains an imperative and does not require a direct answer. We use won't for invitations. We use can, can't, will, would for orders.
| imperative + question tag | notes |
|---|---|
| Take a seat, won't you? | polite invitation |
| Help me, can you? | quite friendly |
| Help me, can't you? | quite friendly (some irritation?) |
| Close the door, would you? | quite polite |
| Do it now, will you. | less polite |
| Don't forget, will you. | with negative imperatives only will is possible |
Although the basic structure of tag questions is positive-negative or negative-positive, it is sometimes possible to use a positive-positive or negative-negative structure. We use same-way tag questions to express interest, surprise, anger etc, and not to make real questions.
Look at these positive-positive tag questions:
Negative-negative tag questions usually sound rather hostile:
Notice that we often use tag questions to ask for information or help, starting with a negative statement. This is quite a friendly/polite way of making a request. For example, instead of saying "Where is the police station?" (not very polite), or "Do you know where the police station is?" (slightly more polite), we could say: "You wouldn't know where the police station is, would you?" Here are some more examples:
| example | notes |
|---|---|
| I am right, aren't I? | aren't I (not amn't I) |
| You have to go, don't you? | you (do) have to go... |
| I have been answering, haven't I? | use first auxiliary |
| Nothing came in the post, did it? | treat statements with nothing, nobody etc like negative statements |
| Let's go, shall we? | let's = let us |
| He'd better do it, hadn't he? | he had better (no auxiliary) |
Here is a list of examples of tag questions in different contexts. Notice that some are "normal" and others seem to break all the rules: