YOU SAID:

Is it unlikely this sentence exists

INTO JAPANESE

この文が存在する可能性は低いですか

BACK INTO ENGLISH

Is this sentence unlikely to exist?

INTO JAPANESE

この文は存在しないのではないでしょうか？

BACK INTO ENGLISH

Surely this sentence doesn't exist?

INTO JAPANESE

この文は存在しないのでしょうか?

BACK INTO ENGLISH

Does this sentence not exist?

INTO JAPANESE

この文は存在しないのでしょうか？

BACK INTO ENGLISH

Does this sentence not exist?