Questions & Answers about Moja majka se želi preseliti u Španjolsku.
Why does "Spain" become Španjolsku here? Doesn't the nominative Španjolska look like a regular feminine noun?
Španjolska is an adjectival noun. While it functions purely as a noun meaning "Spain", it actually declines using adjective endings. Because the preposition u requires the accusative case here, Španjolska takes the standard feminine singular accusative adjective ending -u (just like dobra becomes dobru), resulting in Španjolsku.
Why are we using the accusative u Španjolsku instead of the locative u Španjolskoj?
The preposition u takes the accusative case when it expresses motion toward a destination. Since preseliti se (to move/relocate) shows active motion to a new place, we use the accusative u Španjolsku. If the mother were already living in Spain (a static location), you would use the locative: Ona živi u Španjolskoj. Notice how the locative form also uses the feminine adjective ending -oj!
Could I use a verb like micati se or kretati se to mean "move" in this sentence?
No. Verbs like micati se or pomaknuti se refer to physical movement (like moving your body or shifting an object). When you are talking about relocating your home or residence to a new city or country, you must use the specific verb preseliti se.