YOU SAID:

Hey are you doing today?

INTO JAPANESE

ねぇ今日やってる？

BACK INTO ENGLISH

Hey what are you doing today?

INTO JAPANESE

ねえ、今日何してるの？

BACK INTO ENGLISH

hey what are you doing today

INTO JAPANESE

今日は何してるの？

BACK INTO ENGLISH

what are you doing today?

INTO JAPANESE

今日は何をしますか？

BACK INTO ENGLISH

what are you doing today?