YOU SAID:

One time I found out where foot was

INTO JAPANESE

私は足がどこにあったか見つけたある時

BACK INTO ENGLISH

When I found where my feet were

INTO JAPANESE

私の足がどこにあるのか見つけたとき

BACK INTO ENGLISH

When I find out where my feet are

INTO JAPANESE

私の足がどこにあるのかを知るとき

BACK INTO ENGLISH

When I know where my feet are

INTO JAPANESE

私の足がどこにあるか知っているとき

BACK INTO ENGLISH

When I know where my feet are