could be
Зоар, ну какие у него могли быть проблемы с сыном, а?
Zohar, what kind of problems could he possibly have had with his son, huh?
— Дневной дозор (2006)
You could have been one of us.
It could only be you.
Как мы могли быть близки, когда я знала, что ты все время думаешь о Ребекке?
How could we have been close when I knew you were thinking about Rebecca the whole time?
— Ребекка (1940)
You could have been one of us.