There are many ways of forming questions.

One way is to change the order of words in a sentence. For instance, you can use the first auxiliary verb (helping verb) before the subject to ask a question.

Belinda will address the meeting (statement)

Will Belinda address the meeting? (question)

John has been a teacher for ten years. (statement)

Has John been a teacher for ten years? (question)

I can telephone my friend.(statement)

Can I telephone my friend? (question)

You can use 'do' and 'does' to form questions in the simple present tense.

Do animals feel pain?

Does Ahamath work as a teacher?

You can add a question word, if necessary.

What does it matter?

When do they come?

Where does he live?

Why do you laugh?

You can omit 'do does' or 'did' when you start a question with 'who, what' or 'which'

Who came with you?

What happened to him?

Which key opened the cupboard?

Who wants to learn Chinese?

Which train goes to Hingurakgoda?

When you use 'who, what, which, where' in questions, the preposition is placed at the end of the sentence.

Who do you want to speak to?

Which job have you applied for?

Where does he come from?

Negative questions are formed this way

Isn't it time to go home?

Didn't he know the gravity of the problem?

Hasn't she passed the GCE O/L exam?

Haven't we done enough work today?

Why can't he come home?

Why wasn't the principal invited?

When you seek information, you form the question in a different way.

Do you know where the Majestic City is?

Can you tell me where Kamal has gone?

Have you any idea who built Kalawewa?

You can use 'if' or 'whether' when no other question word is used.

Do you know whether/if he is in?

The word order is different in reported questions

The principal did not know where he left his keys.

The stranger wanted to know why the shops were closed.

Nilu asked me how tall I was.

The teacher asked whether/if we had done our homework.

I asked the station master what time the train left.

Gary wanted to know why I retired.

She asked the bank manager whether/if he could lend her Rs. 100,000.

Father asked me whether/if I had any plan to go abroad.

Nethra asked her sister where she had been.