fourteen years old
I'm turning fourteen.
Eu morei em São Paulo por onze anos e em Brasília por quatorze anos.
I lived in São Paulo for eleven years and in Brasília for fourteen years.
Maria ficou grávida aos quatorze anos.
Maria became pregnant at the age of fourteen.
Ele sabia dirigir desde os quatorze anos, lá no sítio.
He knew how to drive since he was fourteen, back on the farm.
I am fourteen years old.