since the age of
Eu toco piano desde os quinze anos.
I've been playing piano since I was fifteen.
Eu não como chocolate desde os treze anos.
I haven't eaten chocolate since I was thirteen.
Eu sei tocar piano desde os sete anos.
I've been able to play the piano since I was seven years old.
Não tinha relação com o pai, já que não o via desde os cinco anos.
He had no relationship with his father, as he hadn't seen him since he was five years old.
— E Sua Mãe Também (2001)
Eu fumo desde os dezenove anos.
I've been smoking since I was nineteen.
A alegria dos soldados em qualquer frente desde os velhos tempos.
The joy of soldiers on any front since the old days.
— O Tambor (1979)
Tom é professor desde os dezoito anos de idade.
Tom has been a teacher since he was eighteen years old.
Eu canto desde os seis anos de idade.
I've been singing since I was six years old.
Não mantemos contato com anões desde os Dias Escuros.
We haven't been in contact with dwarves since the Dark Days.
— O Senhor dos Anéis: A Sociedade do Anel (2001)