Yes/no questions can be answered with a yes or no, and they normally carry up-rise intonation.
You would like to go swimming.
Would you like to go swimming?
For sentences with auxiliaries, modal verbs, or copular be, yes/no questions are formed by applying the subject–auxiliary inversion.
You would do the same thing.
Would you do the same thing?
He is a hard worker.
Is he a hard worker?
For sentences without auxiliaries, modal verbs, or copular be, apply do insertion to form a yes/no question.
He runs every day.
Does he run every day?
You remembered your passport.
Did you remember your passport?
Positive yes/no questions do not imply any expectation regarding whether the answer will be yes or no.
Do you like winter sports?
Will you be joining us?
Negative yes/no questions are generally asked to confirm an assumption or expectation.
Didn’t he tell you about it?
(Implication: I thought he had OR I’m sure he did.)
They can also express annoyance or disappointment because a previous expectation has not been met.
Haven’t you called him yet?
(Implication: You were supposed to call him.)
Reduced yes/no questions are shortened question forms sometimes used in informal conversation. There are two types:
a. Elliptical yes/no questions omit auxiliary verbs and copular be.
He been talking to you?
They here yet?
b. Declarative questions have the form of a statement. They are used to:
• check information
A: The food there is great.
B: You’ve eaten there before?
• repeat something someone has said in order to question or confirm it
A: I lost my job yesterday.
B: You lost your job?
• express surprise or amazement
A: I can’t believe we lost after being up by 10 points.
B: You lost the game?!