Bunu oniki yaşımdan beri yapmamıştım.
 - I haven't done that since I was twelve.
Bir zamanlar oniki kızı olan bir kral vardı.
 - There was once upon a time a king who had twelve daughters.
Eve ulaştığında saat zaten on ikiydi.
 - It was already twelve when he reached home.
On, on bir, on iki, on üç, on dört, on beş, on altı, on yedi, on sekiz, on dokuz, yirmi.
 - Ten, eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen, twenty.