"He likes to cook with his father."

Translation: Він любить готувати з батьком.

[pyszczucha]

It means 'He likes to cook with a father" not "with his father"

[Vinnfred]

Than whose father is that?

[pyszczucha]

his = його and there is no such word here :p

[Vinnfred]

Relatives in English are usually "owned", but there's no such rule in Ukrainian.

[pyszczucha]

Well, ok and thanks :)

[Myron1313]

Except, maybe?????, if you're from Галичина. Seriously, we always possessed our relatives in our speech. So is this a geographical thing? Or maybe a lower level of Ukrainian?

[Vinnfred]

Dunno. We use both versions. If it is clearly understood that you speak about your father, you can omit pronoun

[Czech9]

"з його", а не "зі його"! (або" зі своїм")

[MNSvXR]

Зі своїм батьком