YOU SAID:

I was sitting on the toilet, thinking about cookies.

INTO JAPANESE

私はクッキーを考えて、トイレに座っていた。

BACK INTO ENGLISH

I think the cookie, was sitting on the toilet.

INTO JAPANESE

私はクッキーがトイレに座っていたと思う。

BACK INTO ENGLISH

I think I was sitting on the toilet cookies.

INTO JAPANESE

私トイレ クッキーに座っていたと思います。

BACK INTO ENGLISH

I was sitting on the toilet cookies I think.

INTO JAPANESE

私と思うトイレ クッキーに座っていた。

BACK INTO ENGLISH

Was sitting on the toilet cookies I think.

INTO JAPANESE

思うトイレ クッキーに座っていた。

BACK INTO ENGLISH

Was sitting on the toilet cookies I think.