YOU SAID:

I put legs on the table, so the legs walked away.

INTO JAPANESE

テーブルの上に足を置いたら、足が離れていきました。

BACK INTO ENGLISH

When I put my feet on the table, my feet moved away.

INTO JAPANESE

テーブルに足を置くと、足が離れていきました。

BACK INTO ENGLISH

When I put my feet on the table, they moved away.

INTO JAPANESE

足をテーブルの上に置くと、足は離れていきました。

BACK INTO ENGLISH

When I put my feet on the table, they moved away.