YOU SAID:

im goona go and do the cwingest ting

INTO JAPANESE

私は goona 行って cwingest ting を行います

BACK INTO ENGLISH

I goona do cwingest ting

INTO JAPANESE

私は最高のことをします

BACK INTO ENGLISH

i do the best

INTO JAPANESE

私は最善を尽くします

BACK INTO ENGLISH

i will do my best

INTO JAPANESE

最善をつくします

BACK INTO ENGLISH

do my best

INTO JAPANESE

私のベストを尽くす

BACK INTO ENGLISH

do my best