YOU SAID:
im sorry for not answering you sooner
INTO JAPANESE
早く返事をしないのが残念です
BACK INTO ENGLISH
It is a pity not to reply promptly
INTO JAPANESE
早急に返信しないのが残念です
BACK INTO ENGLISH
It is a pity not to reply as soon as possible
INTO JAPANESE
できるだけ早く返信しないのは残念です
BACK INTO ENGLISH
It is a pity not to reply as soon as possible
This is a real translation party!