I. The word order changes
(affirmative) The company will produce computers.
(interrogative) Will the company produce computers?
What will the company produce?
Exercise 1: Change the following sentences to questions.
1. He is holding a ticket in his hand.
2. She has bought a computer.
3. They can understand him.
II. An auxiliary verb is used
Which of the following affirmative verb forms do not take an auxiliary verb?
he sells, he sold, he will sell, he can sell, he would sell, he has sold, he had sold, he must sell
Answer: present and past simple
So you have to provide the respective auxiliary verbs when you make a question.
(affirmative) He sells computers.
(interrogative) Does he sell computers?
(affirmative) They sell computers.
(interrogative) Do they sell computers?
(affirmative) He/They sold computers.
(interrogative) Did he/they sell computers?
Exercise 2: Change the following sentences to questions.
1. He explained the program.
2. Colombia imports advanced technologies.
3. Companies benefit from technological advances.
4. Companies prepare their clients for the new technologies.
5. The company has 6000 employees in over ten countries.
How many _________________________________
There is only one verb that does not use an auxiliary verb in present and past simple: the verb ‘be’
(affirmative) A computer is a wonderful machine.(interrogative) Is a computer a wonderful machine?
(affirmative) It was in 1962.
(interrogative) Was it in 1962?
By the way, in English we don’t put ‘¿’ at the beginning of a question.
Exercise 3: Change the following sentences to questions.
1. She had discovered the error.
2. They can make the company a leader in the global market.
3. They needed some information about Microsoft.
4. Mr. Brown remembers the company’s name.
When the question word is the subject of the question, we do not use an auxiliary verb in present simple or past simple
Mr. Brown remembers the company’s name.
Who remembers the company’s name?