я не помню фактов которые он упомян

я не помню фактов которые он упомянул в своем докладе

Результаты (английский) 1:

I don't remember the facts that he mentioned in his report

Результаты (английский) 2:

I do not remember the facts that he mentioned in his report

Результаты (английский) 3:

i don't remember the facts which he mentioned in his report.