YOU SAID:

The cat pooped in the tray and I had to clean it

INTO JAPANESE

猫がトレイの中でうんこをしたので、私はそれを掃除しなければならなかった

BACK INTO ENGLISH

I had to clean it because the cat pooped in the tray

INTO JAPANESE

猫がトレイにうんこを入れたので、掃除しなければならなかった

BACK INTO ENGLISH

The cat put poop in the tray and I had to clean it

INTO JAPANESE

猫はトレイにうんこを入れて、私はそれを掃除しなければならなかった

BACK INTO ENGLISH

The cat put poop in the tray and I had to clean it