Not yet. (まだ～ない): “Have you finished your homework?” “Not yet.” (「宿題終わった？」「まだ終わっていない」) - 試験に出る! 英単語検索辞書

Not yet. (まだ～ない): “Have you finished your homework?” “Not yet.” (「宿題終わった？」「まだ終わっていない」)

Have you finished your homework?　Not yet.