Terms for subject General containing I had doubts

English	Russian
I doubt if he had ever touched a woman before his marriage	сомневаюсь, что он имел дело с женщинами до женитьбы
I doubt it he had ever touched a woman before his marriage	сомневаюсь, что он имел дело с женщинами до женитьбы
I had doubts	меня мучили страхи (AlexandraM)