YOU SAID:
the dog was standing on the car as it moved
INTO JAPANESE
犬が動いたときに犬が車の上に立っていた
BACK INTO ENGLISH
The dog stood on the car when the dog moved
INTO JAPANESE
犬が動いたときに犬が車の上に立った
BACK INTO ENGLISH
The dog stood on the car when the dog moved
You should move to Japan!