если бы она занималась спортом с де

если бы она занималась спортом с детства, она бы, возможно, была уже чемпионкой

Результаты (английский) 1:

If she was involved in sports since childhood, she'd probably was already champion

Результаты (английский) 2:

if it is involved in sports since childhood, she would probably have been a champion

Результаты (английский) 3:

if she was a sports since childhood, she probably would have won