"František and Žofie live at her parents'."

[simeki]

František a Žofie žijí u jejích(their) / její (her) rodičů.

[endless_sleeper]

You have to decline the possessive pronoun. The correct form of její 'her' is in this case jejích (masculine plural, genitive case) The pronoun and the noun it refers to (rodiče) have to match. (same case, same gender, same number...)

'Their' is jejich. It's not declined. Note the difference in vowel length.

[BoneheadBass]

Would "František and Žofie live BY her parents''" work in the reverse sentence? At least in AmE, that phrase would be used, with "by" having the sense of "near." Or does "u" not translate to "by" in this particular context? Just wondering.

[VladaFu]

The "u" here normally means they live together in the same house if not even in the same flat.

However, in the right context, it could likely also mean they live nearby.

[chris95041]

I'm wondering if bydlet isn't the better verb in this sentence, since we're talking about living as in dwelling...

[VladaFu]

Bydlet is also accepted, but žít is as natural as is the Ebhlish to live.

[chris95041]

Ahoj Vlad! Thanks for the clarification. I'll try to practice using žít more then :)

[tenpenny2]

How would you say "Frantisek and Zofie live at their parents?"

[VladaFu]

František a Žofie žijí u svých/jejich rodičů. Depending whether the "their" belongs to František and Žofie or to someone else.

[tenpenny2]

Dekuji moc!