YOU SAID:

I will give them all a surprise.

INTO JAPANESE

みんなにサプライズをしてあげるよ。

BACK INTO ENGLISH

I have a surprise for everyone.

INTO JAPANESE

皆さんにサプライズがあります。

BACK INTO ENGLISH

I have a surprise for you all.

INTO JAPANESE

皆さんにサプライズがあります。

BACK INTO ENGLISH

I have a surprise for you all.