When are you going to the United States? (TIME)
Where are the keys? (PLACE)
Who was Martin Luther King? (PERSON)
How do you get to school? (WAY)
What do you usually have for dinner? (THING)
What happens at the end of the story? (THING)
Why are you watching this TV programme? (CAUSE)
How many students are in your class? (NUMBER)
How much does she earn? (QUANTITY)
How far is from the bus station? (DISTANCE)
What sort of car do they have? (TYPE)
Word Order
The formation of questions follows the QASI rule:
| Q | A | S | I |
| Question word | Auxiliary | Subject | Infinitive |
| What | do | you | do? |
| Where | do | they | live? |
| Where | are | they? | |
| How many people | does | he | know? |
| How much | does | it | cost? |
| How old | are | you? |
N.B. The verb 'to be' does not have an auxiliary verb.