Can one say 'An imríonn tú riamh iománaíocht?' or does the word order have to be as given above?
Riamh is a temporal adverb, and temporal adverbs come after most objects. (A direct pronomial object is the only one that could follow a temporal adverb, e.g. Imrím an iománaíocht. An imrionn tú riamh í? )