are going to get married
They are going to get married.
Me imagino que tarde o temprano Tom y Mary se van a casar.
I imagine that sooner or later Tom and Mary will get married.
Tom y María se van a casar en octubre.
Tom and Maria are getting married in October.
I found out they're getting married.
— Lars y una chica de verdad (2007)
Jill y John se van a casar el mes que viene.
Jill and John are getting married next month.
Ellos se van a casar en junio.
They are getting married in June.
Cuando ella tenga la edad, ellos se van a casar.
When she comes of age, they will get married.