YOU SAID:

He goes back then forth then back never forth always back and forth.

INTO JAPANESE

彼は行ったり来たり、また行ったり来たり、そしてまた前には戻らず、いつも行ったり来たりしています。

BACK INTO ENGLISH

He comes and goes, and comes and goes, and then he never goes back to the way he was before, but always comes and goes.

INTO JAPANESE

彼は来ては去り、また来ては去り、そして決して以前の状態に戻ることはなく、いつも来ては去りを繰り返すのです。

BACK INTO ENGLISH

He comes and goes, comes and goes again, and never returns to the way he was before, always coming and going.

INTO JAPANESE

彼は来ては去り、また来ては去り、そして以前のようには決して戻らず、いつも来ては去ります。

BACK INTO ENGLISH

He comes and goes, comes and goes again, and never returns as he was before, always coming and going.

INTO JAPANESE

彼は来ては去り、また来ては去り、そして以前のようには決して戻らず、いつも来ては去ります。

BACK INTO ENGLISH

He comes and goes, comes and goes again, and never returns as he was before, always coming and going.