There is no boy in the room.
Is there boy in the room?
this wasn't a nice doll
was this a nice doll?
mike can't swim
can Mike swim?
Tom isn't cleaning his teeth now
Ist Tom cleaning his theet now?
Ann and Sam didn't visit their grandparents yesterday.
Did Ann and Sam visit their gp yesterday?
my friend didn't give me a book yesterday
Did my friend give me a book yesterday?
She doesn't know English well.
Does she know english well?
We shall not see monkeys at the zoo tomorrow
Shall we see monkeys at the zoo tomorrow?