YOU SAID:

How did this start? I cant believe it!

INTO JAPANESE

これはどうしたのですか？私はそれを信じていない！

BACK INTO ENGLISH

What is the matter with you? I do not believe it!

INTO JAPANESE

どうしたの？信じません！

BACK INTO ENGLISH

What's wrong? I do not believe it!

INTO JAPANESE

どうしましたか？信じません！

BACK INTO ENGLISH

What's wrong? I do not believe it!