Questions can be a little difficult in English. The first thing to remember is that there are two main kinds, 'yes / no' and 'wh':

The 'yes / no' kind need the answer 'yes' or 'no'.
For example:

A 'wh' one needs more information in the answer. It uses a question word like 'where', 'why', 'how' etc.

(Another kind is a 'tag', for example: it's cold, isn't it?- click here to learn more about tag questions).

They are made in three different ways in English grammar depending on the verb tense:

1: 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
2: 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').
3: 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.

To make the 'wh' kind, just put the question word in front of any 'yes / no' question: Is he coming ('yes / no') becomes When is he coming? ('wh')

Here is a summary of the tenses and their interrogative forms (click on each tense for more information):

Yes / No:

Present simple 'be' Are you hungry?
Present simple other verbs Do you like ice cream?
Present continuous Are you coming to the party?
Past simple 'be' Were you at home yesterday?
Past simple other verbs Did you go out last night?
Past continuous Were you watching TV at 8 last night?
Present perfect Have you eaten?
Present perfect continuous Have you been working hard?
Past perfect Had you slept?
Past perfect continuous Had you been running?
Future simple Will you come?
Future continuous Will you be coming?
Future perfect Will you have finished at 6?
Future perfect continuous Will you have been working?
Modals Can you swim?
Modals Must you leave?


Present simple 'be' Who are you?
Present simple other verbs Where do you play tennis?
Present continuous When are you coming to the party?
Past simple 'be' Where were you last night?
Past simple other verbs How did you do it?
Past continuous What were you doing when I called you?
Present perfect What have you eaten?
Present perfect continuous Where have you been working hard?
Past perfect What had you eaten?
Past perfect continuous Why had you been working hard?
Future simple Who will you meet?
Future continuous Why will you be sleeping?
Future perfect When will you have finished?
Future perfect continuous What will you have been doing?
Modals Where can we swim?
Modals Why must you leave?

Try some exercises about questions here: