Translation:We take care of them.
Ně is feminine accusative, isn't it?
plural accusative in general
Couldnt this also mean "We take care of him"?
That would be 'Staráme se o něho/něj.'
Is there a rule for when to use "je" and when to use "ně" for "them"
Please see the Tips and notes. The n- forms are used with prepositions.
Why not "We take care of it" Because of the "o"