"Is that goat young?"
Translation:Je ta koza mladá?
If that's not accepted directly, you could try reporting it. But it might be rejected as not-quite-standard Czech.
In English, for example, "Is that goat young?" is the standard way of asking the question, although there could be a situation in which "That goat is young?" might be used instead. (Say, you're looking at a goat that appears to be 100 years old, and you're surprised when you learn that it's only 9 years old.)