Dzięki, ale nie zabardzo rozumiem, to następstwo czasów następi względem czego, jakiego czasu?
Może tak:
Ad1
1. She would never have gone visit him if she had known that Stephen would be there - będzie
1. She would never have gone visit him if she had known that Stephen was there - jest
1. She would never have gone visit him if she had known that Stephen had been there - był
Czy wszystkie 3 zdania są prawidłowe?