He doesn't know who was the nineteenth president of the United States.
He isn't sure when the Civil War ended.
What is your name?
What is your favorite music?
Where do you live?
Where will you go for summer?
When is your birthday?
Why do you like your country?
Has Tony already been to Brighton?
Where Tony has already been?
Tony has already been to Brighton,hasn't Tony?
Who has already been to Brighton
PresentI sing
you sing
he/she/it sings
we sing
you sing
they sing
<span>Present continuousI am singing
you are singing
he/she/it is singing
we are singing
you are singing
they are singing
</span>Simple pastI sang
you sang
he/she/it sang
we sang
you sang
they sang