YOU SAID:

To what do I owe this pleasure

INTO JAPANESE

私はこの喜びを何に負っていますか

BACK INTO ENGLISH

What do I owe this joy to

INTO JAPANESE

この喜びは何のおかげだ

BACK INTO ENGLISH

what is the reason for this joy

INTO JAPANESE

この喜びの理由は何ですか

BACK INTO ENGLISH

what is the reason for this joy