YOU SAID:
i can change the diapers of my son but not my dog
INTO JAPANESE
私の息子のおむつは変えられますが私の犬は変えられません
BACK INTO ENGLISH
My son's diaper can be changed but my dog can not be changed
INTO JAPANESE
私の息子のおむつは変えることができますが私の犬は変えることができません
BACK INTO ENGLISH
My son's diaper can be changed but my dog can not be changed
You've done this before, haven't you.