Yes-no Question

Questions: yes-no questions

Questions that need either a yes or a no answer are called yes-no questions:

Do you like juice mango? (answer: yes or no)

Forming yes-no questions

With an auxiliary verb

We form yes-no questions with an auxiliary verb (be, do or have) + subject + main verb or with a modal verb + subject + main verb:

Be: Is she working very hard?	Were they travelling together?
Do: Does that taste okay?	Did you go to the concert?
Have: Have they eaten yet?	Had they visited Rome before?
Modal: Could you help me lift this?	Should I open the window?

Where there is no auxiliary verb be, have or modal verb already present in the statement, we use the auxiliary do, does, did:

Statement form (no auxiliary)	Question form
You usually walk to work.	Do you usually walk to work?
You liked disco music in the 70s.	Did you like disco music in the 70s?

We don’t use an auxiliary verb when we use be as a main verb:

Is she your sister?

Auxiliary + subject + auxiliary + verb

Is this phone call being recorded?

Auxiliary + subject + auxiliary + verb

Has the garden been looked after while you were away?

Modal + subject + auxiliary + auxiliary + verb

Should we have been writing this down?

We only put auxiliary and modal verbs, not main verbs, before the subject:

Where did you find the keys?

Without an auxiliary verb

When we ask yes-no questions using the main verb be, we don’t use an auxiliary verb. The word order is: be + subject:

Is the weather nice in Turkey in the winter?

Was she angry when you told her about the accident?

When we ask yes-no questions with the main verb have, we can also use the word order verb + subject, but it sounds rather formal. We use have got and do as more neutral or informal alternatives:

Have you an identity card? (formal)

Do you have an identity card? (neutral)

Have you got an identity card? (informal)

Did you have your glasses with you when you left the car?

Had you got your glasses with you when you left the car? (less common)

Negative yes-no questions

Isn’t that Pauline’s car? (I’m pretty sure that this is correct. I’m asking for confirmation.)

Shouldn’t we be leaving? (I think that we should leave now.)

We form negative yes-no questions with not. We usually use the contraction n’t. If we use not in its full form, the question sounds very formal:

Isn’t that the oldest building on this street?

[AUX][s]Is that [not]not the oldest building in this street? (formal) (preferred to [the very formal] Is not that the oldest building on this street?)

We can use negative yes-no questions to make invitations, offers and complaints stronger:

Won’t you stay for dinner? (invitation; stronger than Will you stay for dinner?)

Wouldn’t you like another coffee? (offer; stronger than Would you like another coffee?)

Can’t the manager do something about the noise? (complaint; stronger than Can the manager do something about the noise

Source : https://dictionary.cambridge.org/grammar/british-grammar/questions-and-negative-sentences/questions-yes-no-questions-are-you-feeling-cold