Обратите внимание на правила перевода герундиальных оборотов.

1. I heard of your friend's having accepted our offer. 2. We knew nothing of his having made the report. 3. Her being sent on business is quite unexpected to us. 4. His asking for help entirely changes the situation. 5. Excuse my having interrupted you. 6. We don't know anything of his having published his article. 7. I heard of your sister's having been sent abroad. 8. We knew of our teacher's having been pleased with our compositions. 9. His being sent to London was very useful for him. 10. We have never heard of his having invented this device.