A question sentence can also start with an auxiliary verb.
Some of the most used auxiliary verbs are:
Shall, Will, Should, Would, Could, Can, May
| Positive sentence: | Question sentence: |
|---|---|
| I may read a book. | May I read a book? |
| You will go to the park. | Will you go to the park? |
| He should watch his back. | Should he watch his back? |
| She could call her mother. | Could she call her mother? |
| It can fetch a stick. | Can it fetch a stick? |
| We shall talk after class. | Shall we talk after class? |
| You should walk home. | Should you walk home? |
| They may sleep in the guestroom. | May they sleep in the guestroom? |