YOU SAID:
なるべく早く帰ってきてくださいね。
INTO JAPANESE
なるべく早く帰ってきてくださいね。
BACK INTO ENGLISH
Please come back as soon as possible.
INTO JAPANESE
できるだけ早く戻ってきてください。
BACK INTO ENGLISH
Please come back as soon as possible.
That didn't even make that much sense in English.