You say ’’まだ’’(mada). In your example it would be: あなたのへやはまだきたないですか。(Anata no heya ha mada kitanai desu ka).

"まだ" Ex "i'm still doing that" まだやってる　or まだしてる. " i'm still waiting for her" まだ彼女（かのじょ）をまってる　"it's still dark outside" 　外（そと）は　まだ　暗い（くらい）　 "それでもまだ" Ex "you still rock!" それでもまだ　かっこいいよ！　(even thogh you did something clumsy) these are examples as far as i can think of right now. hope mine helps :)