English makes many yes or no questions by moving the auxiliary do, does, or did in front of the subject. The pattern is do + subject + base verb in the present, does + subject + base verb with a third person singular subject, and did + subject + base verb for the past. The main verb stays in its base form: Do they live here? and Did she call you? The auxiliary carries tense and agreement, so the main verb does not change in the question. In a statement, the verb comes after the subject: They live here. In the question, the auxiliary comes first: Do they live here?

Do support in yes no questions

Idea
Use do before the subject in the present simple when the main verb is not be or a modal.
Use does before the subject with he, she, or it in the present simple.
Use did before the subject for past simple questions.

The verbs be and modal verbs do not need do in questions. They move directly before the subject: am/is/are + subject and modal + subject. The sentence becomes Are they ready? or Can she drive? The rest of the sentence stays in the same order after the subject. With be, the full verb is already the auxiliary, so there is no extra helper. With modals like can, should, will, and must, the modal takes the question position and the main verb stays in its base form: Will you stay? and Should we leave?

Question word order with be and modals

Idea
Move be before the subject when it is the main verb in a question.
Move modal verbs before the subject to make a question.
Do not add do when the question already uses be or a modal verb.

A wh-question starts with a question word such as what, where, when, why, who, or how. After that word, English uses normal auxiliary inversion: wh-word + auxiliary + subject + main verb. The auxiliary comes before the subject just as in yes or no questions. Where are you going? and What did he buy? follow this order. If the sentence has do, does, or did, the auxiliary still carries tense and the main verb stays in the base form: Why did they leave early? The wh-word comes first because it names the missing information, and the inverted auxiliary shows that the sentence is a question.

Basic wh question word order

Idea
Start with the wh word in a wh question.
Use auxiliary inversion after the wh word in most questions.
Keep normal statement order only when the wh word is the subject.

An object question asks about the receiver of the action. It uses the usual wh-question pattern with an auxiliary: wh-word + auxiliary + subject + verb. In Who did you meet?, who asks about the object, so the subject you follows the auxiliary did. A subject question asks about the doer of the action. It keeps normal statement order after the wh-word: Who called you? There is no auxiliary before the subject because the wh-word itself is the subject. Compare Who did Anna call? and Who called Anna? In the first sentence, who is the object. In the second, who is the subject.

Subject and object question order

Idea
Use auxiliary plus subject in an object question.
Use statement order in a subject question.
Subject questions do not need do support in the present simple.

In English, a preposition in a question can stay at the end of the sentence or move before the wh-word. The more common everyday form keeps it at the end: What are you talking about? and Who did she go with? In more formal style, the preposition can come before the wh-word: About what are you talking? and With whom did she go? The rest of the question follows normal wh-question order. When the preposition moves, it must go directly before the wh-word. When it stays at the end, the sentence sounds more natural in speech.

Preposition placement in questions

Idea
Keep the preposition at the end in everyday English.
Move the preposition before the wh word in more formal English.
Use the ending position when it sounds more natural in conversation.

A negative question combines a question form with not or a contraction like isn't, don't, didn't, can't, or won't. The structure is usually auxiliary + not + subject + verb or auxiliary contraction + subject + verb. Examples include Don't you know her? and Isn't he coming? Negative questions often express surprise, strong expectation, or doubt. Didn't you see my message? can show that the speaker expected a different answer. Aren't you cold? can suggest concern or surprise. The negative form does not simply ask for yes or no information; it often pushes the listener toward a particular response.

Meanings of negative questions

Usage	Explanation
Surprise	Use a negative question when you did not expect the answer to be yes.
Expectation	Use a negative question when you expect agreement or confirmation.
Disagreement	Use a negative question when you challenge a previous idea politely.

An embedded question appears inside another clause after an expression such as I wonder, Can you tell me, I don't know, or Do you know. After these expressions, English uses statement word order, not question order. The pattern is introductory clause + wh-word + subject + verb. I wonder where she lives keeps the subject she before the verb lives. Can you tell me what he wants? also follows statement order inside the clause. There is no auxiliary inversion after the wh-word in embedded questions. The sentence sounds like a request, thought, or piece of reported information rather than a direct question.

Statement order after reporting verbs

Idea
Use statement word order after a phrase like I wonder or Can you tell me.
Do not use auxiliary inversion in embedded questions.
Keep the question word, but make the clause sound like a statement.

A question tag is a short question added to the end of a statement. The tag uses the opposite polarity and repeats the correct auxiliary or form of be: She is tired, isn't she? and You don't work here, do you? A positive statement usually takes a negative tag, and a negative statement usually takes a positive tag. In spoken English, tags often ask for agreement, confirmation, or reaction. Short answers use the same auxiliary system: Yes, she is. No, she isn't. Yes, they do. No, they don't. The auxiliary in the answer matches the one in the question, and the main verb does not repeat.

In everyday speech, people often soften a direct question by using rising intonation on a statement form: You coming tonight? and She finished already? The words stay in statement order, but the voice rises at the end to signal a question. This form is common in informal conversation, especially when the speaker expects the answer to be obvious or quick. Spoken English also distinguishes who and whom by form, but whom sounds formal and appears less often in conversation. In natural speech, who is usually the normal choice, while whom appears more in careful writing or very formal questions.

whomwhorising statement intonation

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Use who very widely in speech and everyday questions, even when the person is the objectUse rising intonation on a statement form to sound like a question in casual speechUse whom more often in formal language or careful writing

Spoken question style and formality

Region	Variant	Definition	Example
American English	who	Use who very widely in speech and everyday questions, even when the person is the object.	Who did you meet?
British English	whom	Use whom more often in formal language or careful writing.	Whom did you meet?
British English	rising statement intonation	Use rising intonation on a statement form to sound like a question in casual speech.	You are coming? with rising intonation

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