YOU SAID:

I've never seen anything that AMAZING!

INTO JAPANESE

私は決して何かの驚くべきを見てきました!

BACK INTO ENGLISH

I amazing or something never seen!

INTO JAPANESE

私驚くべきか何か見たことがない!

BACK INTO ENGLISH

Amazing I haven't seen anything!

INTO JAPANESE

驚くべき何かを見ていない!

BACK INTO ENGLISH

Haven't seen something amazing!

INTO JAPANESE

素晴らしい何かを見ていない!

BACK INTO ENGLISH

I didn't do anything great!

INTO JAPANESE

私は何も偉大なことはしていない!

BACK INTO ENGLISH

I haven't done anything great!

INTO JAPANESE

私は偉大な何かを行っていない!

BACK INTO ENGLISH

I haven't done anything great!