YOU SAID:

I cannot believe someone made this.

INTO JAPANESE

私は誰かがこれをしたなんて信じられない。

BACK INTO ENGLISH

Can't believe I did this to someone.

INTO JAPANESE

誰かにこれをやったなんて信じられない。

BACK INTO ENGLISH

Can't believe someone did this.

INTO JAPANESE

誰かこれを信じることができません。

BACK INTO ENGLISH

Not someone who believes in it.

INTO JAPANESE

いない誰もがそれを信じると。

BACK INTO ENGLISH

Anyone who does not believe in it.

INTO JAPANESE

それを信じていない人。

BACK INTO ENGLISH

Those who do not believe in it.

INTO JAPANESE

それを信じていない人。

BACK INTO ENGLISH

Those who do not believe in it.