Yes or No Questions
Syntax
The questions of yes or no are also called closed questions or polar questions because the answer to them can only be yes or no.
To create a closed question only auxiliary (be, have, do) or modal verbs (can, could, would…) can be used.
Yes or No Questions in Present Form
The structure of a yes or no question is:
Auxiliary/modal verb + subject + noun/verb + …?
The answers to closed questions are called short answers.
The structure of short answers is:
Yes/no + , + subject + auxiliary/modal verb (the same as the question)
For example:
— “Do you like cats? — Yes, I do.” = Yes/no questions are also called closed questions, and since the question has been asked with the auxiliary verb to do, the short answer will contain it.
♦ “Whose cat is this?” = Wh- questions are also called open questions because you can give an infinite number of answers.
NOTE: We can only use an auxiliary (be/have…) or a modal verb (can/could/would…) to create a yes or no question.
