YOU SAID:

it would be very unfortunate were this to occur

INTO JAPANESE

もしこれが起こったら非常に残念なことだ

BACK INTO ENGLISH

It would be a great shame if this happened.

INTO JAPANESE

もしそんなことが起こったら、とても残念なことだ。

BACK INTO ENGLISH

It would be such a shame if that were to happen.

INTO JAPANESE

もしそんなことが起こったら、とても残念なことだ。

BACK INTO ENGLISH

It would be such a shame if that were to happen.