хотя сыну всего 15 лет он уже выше

хотя сыну всего 15 лет он уже выше своего отца

Результаты (английский) 1:

Although his son just 15 years old he was already above his father

Результаты (английский) 2:

although the son is only 15 years old he is already taller than his father

Результаты (английский) 3:

Although his son is only 15 years old he had already above his father