Он часто раздумывал о том, какую он

Он часто раздумывал о том, какую он делает ошибку (to reflect on the mistake), что так боготворит свою дочь.

Результаты (английский) 1:

He often pondered about what he makes a mistake (to reflect on the mistake) so adores his daughter.

Результаты (английский) 2:

He often wondered about what he is making a mistake (to reflect on the mistake), so adores his daughter.

Результаты (английский) 3:

he often thought about what he makes a mistake (to be on the next) that so worships his daughter.