"Where is the mother of those two children?"

Translation: Kde je matka těch dvou dětí?

[imaldastar]

proč nepotřebume "z?" ..."z těch dvou dětí?"

[VladaFu]

This is the basic use of the genitive case which works in many other IndoEuropean languages.

[ivegotnoname_]

This is second noun case used to express that the mother sort of owns the children. You don't use any preposition there.

[VladaFu]

Please use the name genitive and not the case numbers when helping (which is welcomed).

[imaldastar]

oh okay, thanks so much to both of you! yeah saying genitive helps me more because i think i learned accusative after nominative so i forget the order. :/

[Pollyhs]

Could it also be... techto deti ?

[BoneheadBass]

Těchto would be "these."

[Pollyhs]

ok thanks