まま (mama): Remaining in the same state

While remaining in a state; unchanged

Past ta-form verb + まま; negative nai-form verb + まま; noun + の + まま; i-adjective + まま; na-adjective + な + まま.

Describe a state that remains unchanged during another action. V-ta mama maintains the resulting state of an action, while V-nai mama means something remains undone. It is not simply a connector for any two simultaneous actions.

窓を開けたまま出かけてしまいました。

I went out leaving the window open.

靴を履いたまま部屋に入らないでください。

Please do not enter the room with your shoes on.

朝ご飯を食べないまま会社へ行きました。

I went to work without eating breakfast.

この町の景色は昔のままです。

The scenery in this town is unchanged from the past.

電気をつけたまま寝てしまいました。

I fell asleep with the light still on.