Tom on iki yaşında iken trombon derslerine başladı. - Tom began trombone lessons when he was twelve years old.
Tom on iki yaşında iken trombon derslerine başladı.
Tom began trombone lessons when he was twelve years old.
Tom yirmi yaşına kadar trombon çalmaya başlamadı. - Tom didn't start to play the trombone until he was twenty.
Tom yirmi yaşına kadar trombon çalmaya başlamadı.
Tom didn't start to play the trombone until he was twenty.