sentence: When I was in school I used to go to my grandparents ' home to have lunch because my parents were at work . I fondly remember my grandma 's great cooking skills that she still has to this day .
modified: When I was in school I used to go to my granparents ' home to have lunch because my parents were at work , I fondly remember my gandma 's great cooking skills that she still owns to this day .
transformation: SPELL, PUNCT, SPELL, VERB