YOU SAID:

today im going to find my shoes because i lost it

INTO JAPANESE

今日は私がそれを失ったので、私の靴を見つけるつもりです

BACK INTO ENGLISH

I'm going to find my shoes because I lost it today.

INTO JAPANESE

今日は靴をなくしたので靴を見つけるつもりです。

BACK INTO ENGLISH

I lost my shoes today, so I'm going to find them.

INTO JAPANESE

今日は靴をなくしたので、私はそれらを見つけるつもりです。

BACK INTO ENGLISH

I lost my shoes today, so I'm going to find them.