"If that movie theater belonged to me, I would be happy."

Translation: Se tiu kinejo apartenus al mi, mi estus feliĉa.

[LaHakanto]

So, "to belong to something" is an action that the subject can do? "Mia hundo apartenas al mi." [?] Could one say "Mia hundo apartenas min." to convey the same meaning? APARTENI - "to belong to" [?]

[mizinamo]

No, you couldn't; it's "aparteni al".

[kiddo-depido]

"Se tiu kinejo apartenus min, mi felicxus" reported

[kanguruo]

Aparteni is not transitive, this means that it can't have an object

[kiddo-depido]

So, it must be "al mi"?

Dankon ;)

[ysangkok]

Maybe it is possible to use "posedigus"?

[mizinamo]

"posedi" is to possess, to "posedigi" would be to cause someone to possess - to give or donate, perhaps.

If you want to make a passive (since usually cinemas are not things that possess other things), you need a passive participle such as "Se tiu kinejo estus posedita de me".

That feels clunky to me, though.

[Uberdonutmonster]

Kial ne "mi gxojus?" finale?

[EliasGThomas]

ĝojus is in the list of possible translations for would be happy, so I typed it but it got rejected... :/