YOU SAID:

The ending has not yet been written.

INTO JAPANESE

結末は書かれてないです。

BACK INTO ENGLISH

There is no ending is written.

INTO JAPANESE

結末は書かれてないがあります。

BACK INTO ENGLISH

I have not written the ending.

INTO JAPANESE

私は結末を書いていません。

BACK INTO ENGLISH

I haven't written the ending.

INTO JAPANESE

私は結末を書かれていません。

BACK INTO ENGLISH

I not written the ending.

INTO JAPANESE

私は結末が書き込まれません。

BACK INTO ENGLISH

I will not write the ending.

INTO JAPANESE

私は結末を書き込めません。

BACK INTO ENGLISH

I cannot write the ending.

INTO JAPANESE

私は結末を書き込むことはできません。

BACK INTO ENGLISH

I cannot write the ending.