YOU SAID:

hello sir how do you do

INTO JAPANESE

こんにちはあなたはどうやってやるの？

BACK INTO ENGLISH

Hello How are you going to do?

INTO JAPANESE

こんにちはどうやってやるの？

BACK INTO ENGLISH

Hello how are you doing?

INTO JAPANESE

こんちわ ご機嫌よう

BACK INTO ENGLISH

Hello. How are you doing?

INTO JAPANESE

こんちわ ご機嫌よう

BACK INTO ENGLISH

Hello. How are you doing?