YOU SAID:

I don't know what I'm going to do without shoes tomorrow.

INTO JAPANESE

明日は靴なしで何をしたらいいのか分からない。

BACK INTO ENGLISH

I don't know what I'll do tomorrow without my shoes.

INTO JAPANESE

明日は靴がないと何をしたらいいのか分からない。

BACK INTO ENGLISH

I don't know what I'll do tomorrow without my shoes.