YOU SAID:
how could this be? i'd never belive it
INTO JAPANESE
これはどうやってできるの?信じられない
BACK INTO ENGLISH
how can i do this can't believe it
INTO JAPANESE
信じられない
BACK INTO ENGLISH
can't believe it
INTO JAPANESE
信じられない
BACK INTO ENGLISH
can't believe it
That didn't even make that much sense in English.