There are two main kinds, yes / no - questions and special questions:
The yes/no - questions are answered with ‘yes’ or ‘no’ . For example...
Do you like dogs?
Do you like dogs
Is he from Japan?
Is he from Japan
Have you been to Spain?
Have you been to Spain
Special questions need more information in the answer. They use a question word like 'where', 'why', 'how' etc.
Where do you live?
Where do you live
What did she do yesterday?
What did she do yesterday
Where is the station?
Where is the station.
They are made in three different ways in English grammar, depending on the verb tense: We change the position (or 'invert') the verb and the subject. This is used for the present simple and the past simple of 'be' and for modal verbs.
He is a singer. Is he a singer?
He is a singer. Is he a singer.
Тhey were worried. Were they worried?
Тhey were worried. Were they worried.
I can swim. Can I swim?
I can swim. Can I swim.
We add an extra word, like 'do / does' or 'did'.This is used for the past simple and the present simple of all other English verbs (not 'be').
Do you like pizza?
Do you like pizza.
Did he change the game?
Did he change the game.
We change the position of the first auxiliary verb and the subject.
This is for all other tenses, for example the present perfect, the present continuous or the future perfect continuous.
He is reading. Is he reading?
He is reading. Is he reading.
To make the special question, just put the question word in front of any 'yes / no' question: Is he travelling ('yes / no') becomes When is he travelling? ('wh')
Yes / No:
Present simple 'be'
Are you tired?
Are you tired
Present simple other verbs
Do you like pasta?
Do you like pasta.
Present continuous
Are you coming to the concert?
Are you coming to the concert.
Past simple 'be'
Were you at home last night?
Were you at home last night
Past simple other verbs
Did you go out yesterday?
Did you go out yesterday
Past continuous
Were you watching TV at 10 last night?
Were you watching TV at 10 last night.
Present perfect
Have you eaten?
Have you eaten.
Modals
Can you swim?
Can you swim.
Must you leave?
Must you leave.
Special questions:
Who are you?
Who are you.
Where do you play tennis?
Where do you play tennis
When are you coming to the party?
When are you coming to the party
Where were you last night?
Where were you last night
How did you do it?
How did you do it.
What were you doing when I called you?
What were you doing when I called you.
What have you eaten?
What have you eaten.
