Can I pay by card?
Yes, you can / no, you can't
May we have some more time to finish the project Mr Allen?
Yes, you may / no, you may not
Can I go to the toilet please?
Yes, you can/no, you can't
Mum, I've finished my homework, can I play platstation?
Yes, you can / no, you can't
Can we visit Grandad this weekend mum?
Yes we can / no we can't
May I leave early?
Yes, you may/ no , you may not