"How old is that machine?"
Translation:Jak je ta mašina stará?
Could someone show me how to do the sentence with "stroj" for machine, please? I put "Jak stary je to stroj?" and it said the answer should be "Jak je ta mašina stará?" So I am not sure if my mistake is in the order of the words or if I mixed up stary/stare/stara or to/ty/ta. Thank you!
"Jak starý je to stroj." is a possible Czech sentence, but a different one, identical with "Jak starý stroj je to?" or "Jak starý stroj to je?". So that would be the "je to"/"to je" pattern. "How old machine is that?" The "to" would couple to the "je", not to "stroj".
Because stroj is masculine, "the machine" must be "ten stroj".
You have to distinguish the syntax (see also my answer to NRPL123):
"How old is that machine?" "Jak je ta mašina stará?"
"How old machine is that?" "Jak stará je to mašina?"
is this / is that - je to / to je
the machine / that machine - ta mašina / tamta mašina / ten stroj / tamten stroj