YOU SAID:

i swear this is a sentence of which does not exist for its own sake

INTO JAPANESE

私はこれがそれ自体のために存在しない文であることを誓います

BACK INTO ENGLISH

I swear this is a sentence that doesn't exist for itself

INTO JAPANESE

私はこれがそれ自体には存在しない文であることを誓います

BACK INTO ENGLISH

I swear this is a sentence that doesn't exist in itself

INTO JAPANESE

これはそれ自体には存在しない文であることを誓います

BACK INTO ENGLISH

I swear this is a sentence that doesn't exist in itself