Singular (1)

a teacher?

a book?

a pencil?

a car?

a house?

an orange?

an apple?

Do I have

Do you have

Does he have

Does she have

Does it have

Plural (2,3,...)

teachers?

books?

pencils?

cars?

houses?

oranges?

apples?

Do we have

Do you have

Do they have