YOU SAID:

I'm going to do something I've never done before

INTO JAPANESE

私は前にやったことがない何かをするつもり

BACK INTO ENGLISH

Do you intend to do something they have never done ago I

INTO JAPANESE

彼らはやったことがない何かをする前に私

BACK INTO ENGLISH

Something that they did not before I

INTO JAPANESE

私の前にない何か

BACK INTO ENGLISH

Not in front of me?

INTO JAPANESE

ない私の前でですか。

BACK INTO ENGLISH

What's in front of me.

INTO JAPANESE

私の前に何です。

BACK INTO ENGLISH

What is in front of me.

INTO JAPANESE

私の前に何です。

BACK INTO ENGLISH

What is in front of me.