YOU SAID:

Whoever wrote it probably didn't think anyone would ever see it?

INTO JAPANESE

それを書いた人は誰もそれを見ないと思ったでしょうか？

BACK INTO ENGLISH

Did anyone who wrote it think that they would not see it?

INTO JAPANESE

それを書いた人は誰もそれを見ないと思ったのですか？

BACK INTO ENGLISH

Did anyone who wrote it think that no one would see it?

INTO JAPANESE

それを書いた人は誰もそれを見ないだろうと思いましたか？

BACK INTO ENGLISH

Did anyone who wrote it think that they would not see it?

INTO JAPANESE

それを書いた人は誰もそれを見ないと思ったのですか？

BACK INTO ENGLISH

Did anyone who wrote it think that no one would see it?

INTO JAPANESE

それを書いた人は誰もそれを見ないだろうと思いましたか？