YOU SAID:
i have parked the cat
INTO JAPANESE
私は猫を駐車しました
BACK INTO ENGLISH
I parked a cat
INTO JAPANESE
猫を駐車しました
BACK INTO ENGLISH
Cat parked
INTO JAPANESE
駐車した猫
BACK INTO ENGLISH
Parked cat
INTO JAPANESE
駐車中の猫
it is unlikely that this phrase will ever reach equilibrium