A tag question turns a statement into a quick check. The speaker gives information first, then adds a short question to ask for agreement, confirm a fact, or sound less direct. Compare You live here with You live here, don’t you? The second version invites the other person to respond. It can sound friendly, careful, or mildly persuasive, depending on the situation.

Common uses of tag questions

Usage	Explanation	Example
Checking information	Use a tag question when you want to check that something is true and invite the other person to confirm it.	You live near the station, don't you?
Softening a statement	Use a tag question when you want to sound less direct and make your comment feel friendlier.	This meeting is a bit long, isn't it?
Inviting agreement	Use a tag question when you want to bring the listener into the conversation and encourage a quick response.	We should leave now, shouldn't we?

The usual pattern is statement + comma + tag question. The statement comes first and carries the main message. The tag comes at the end and is short: isn’t it?, don’t they?, did you? The tag follows the sentence it checks, so the listener hears the claim before the question. It’s cold today, isn’t it? and They left early, didn’t they? are typical examples.

Core tag question structure

Example	Pattern
She is ready, isn't she?	A tag question usually has a statement first and a short tag after it.
It is cold, isn't it?	The statement and the tag are usually separated by a comma.
They are coming, aren't they?	The tag usually repeats the idea in a short form.

The tag repeats the auxiliary verb from the main clause. If the statement uses is, the tag uses is; if it uses have, the tag uses have; if it uses will, the tag uses will. She is coming, isn’t she? They have finished, haven’t they? You will call later, won’t you? When the statement has no auxiliary verb, use do, does, or did in the tag. You like coffee, don’t you? He works here, doesn’t he? They watched the game, didn’t they?

Auxiliary verb matching in tags

Example	Pattern
He has finished, hasn't he?	Use the same auxiliary in the tag that appears in the main clause.
You like coffee, don't you?	Use do, does, or did in the tag when the main clause has no auxiliary.
They went home, didn't they?	Use the base form of the auxiliary in the tag, not a full verb phrase.

A positive statement takes a negative tag. A negative statement takes a positive tag. You’re ready, aren’t you? He can swim, can’t he? She didn’t call, did she? The verb form stays linked to the statement, but the tag flips in polarity. This is the normal pattern in English, and it creates a clear check for agreement or confirmation.

Polarity in tag questions

Example	Pattern
She can swim, can't she?	A positive statement usually takes a negative tag.
You do not know him, do you?	A negative statement usually takes a positive tag.
We are late, aren't we?	The tag changes polarity so the listener can confirm or correct the statement.

Some forms use fixed patterns. With I am, the tag is aren’t I?: I’m late, aren’t I? In formal English, am I not? also appears, but aren’t I? is common in speech. With there is and there are, the tag uses isn’t there? or aren’t there?: There’s a problem, isn’t there? There are seats left, aren’t there? Modal verbs keep the same modal in the tag: You should rest, shouldn’t you? We could leave now, couldn’t we? Imperatives often use will you?, won’t you?, or can you?: Open the window, will you? Pass the salt, will you? Suggestions with let’s usually take shall we?: Let’s start now, shall we?

Special tag question patterns

Example	Pattern
I am early, aren't I?	With I am, use the special tag aren't I.
There is a book on the table, isn't there?	With there is or there are, repeat there in the tag.
We should call her, shouldn't we?	With a modal verb, repeat the same modal in the tag.
Close the door, will you?	With an imperative, use will you or won't you in the tag.
Let's start now, shall we?	With let's, use shall we in the tag.

Tag questions with falling intonation sound like a speaker expects agreement or sees the statement as nearly certain. It’s closed, isn’t it? with a falling voice sounds like a check of a known fact. Rising intonation makes the tag sound more like a real question. After a tag question, speakers often answer with a short reply: Yes, I do. No, she isn’t. Yes, they have. The short answer usually repeats the auxiliary, not the full sentence.

Tag question intonation and responses

Word	Notation	Description	Example
certainly tag	falling intonation	Use falling intonation when the speaker feels confident and expects agreement.	You know the answer, don't you?
real check	rising intonation	Use rising intonation when the speaker is genuinely asking for confirmation.	You are coming, aren't you?
short answer	yes no response	People often answer a tag question with a very short reply such as yes or no.	Yes, I am. No, I am not.