YOU SAID:

I pooped in my cats sandbox today

INTO JAPANESE

今日は猫のサンドボックスでうんちをしました

BACK INTO ENGLISH

I had a poop in the cat sandbox today

INTO JAPANESE

今日は猫のトイレにうんちがありました

BACK INTO ENGLISH

There was a poop in the cat litter box today

INTO JAPANESE

今日は猫のトイレにうんちがありました

BACK INTO ENGLISH

There was a poop in the cat litter box today