〜まま

〜まま expresses maintaining a state while doing something else, meaning "as is," "while still," or "leaving something unchanged."

Formation:

• Verb た-form + まま (靴を履いたまま)

• Noun + の + まま (そのまま)

• い-adjective + まま (若いまま)

The key nuance is that a prior state continues without change. Often implies something was left undone or unchanged when it perhaps should have been addressed.