Мы не видели его уже много лет, но

Мы не видели его уже много лет, но часто слышали, как его имя упоминалось в доме его родителей. Мы не раз слышали, как его мать говорила о нем и его работе.

Results (English) 1:

We have not seen him for many years, but often heard his name mentioned in the House of his parents. We have repeatedly heard how his mother would say about him and his work.

Results (English) 2:

We have not seen him for many years, but often heard his name mentioned in the house of his parents. We have heard how his mother used to say about him and his work.

Results (English) 3:

We have not seen him for many years, but often heard, as his name was mentioned in his parents' home. We have not once heard, as his mother had talked about it and his work.