YOU SAID:

if you have not felt pain you would not know what other peoples pain is

INTO JAPANESE

痛みを感じたことがないなら、他の人の痛みが何であるかを知らないでしょう

BACK INTO ENGLISH

If you've never felt pain, you don't know what other people's pain is

INTO JAPANESE

痛みを感じたことがない人は、他人の痛みを知らない

BACK INTO ENGLISH

People who have never felt pain don't know the pain of others

INTO JAPANESE

痛みを感じたことのない人は他人の痛みを知らない

BACK INTO ENGLISH

People who have never felt pain don't know the pain of others