sentence: At first , when I started to play football , I did it with my classmates , who were all boys , so I used to feel a little bit uncomfortable . However , some years ago , they started to include me when they played , and nowadays , I love playing football with them .
modified: At first , when I started to play football I did it with my classmates , who where all boys , so I used to feel a little bit uncomfortable , however , some years ago , they started to intergrate me when they play , and nowadays , I love playing football with them .
transformation: PUNCT, OTHER, PUNCT, VERB, VERB:TENSE