YOU SAID:

My fingernail polish needs to come off.

INTO JAPANESE

私のマニキュアを外す必要があります。

BACK INTO ENGLISH

I need to remove my nail polish.

INTO JAPANESE

マニキュアを取り除く必要があります。

BACK INTO ENGLISH

You need to get rid of nail polish.

INTO JAPANESE

あなたはマニキュアを取り除く必要があります。

BACK INTO ENGLISH

You need to get rid of nail polish.