my favourite sport is play basketball对嘛要不然是playing?为什么呢

my favourite sport is play basketball对嘛要不然是playing?为什么呢 My favourite sport is playing basketball. My favorite sport is playing basketball 中的play后面为什么要加ing形式 my favourite sport is playing football my favourite sport is My favorite sport is playing basketball.为什么加ing? MY favourite sport is basketball 同学问我sport 为什么不加s. My favourite indoor activity is playing computer games(对play My favourite sport is playing football.可以等于 Playing football 英语翻译翻译：My Favourite Sport My favourite sport is basketball a 英语翻译My Favourite Sport My favourite sport is basketball as i 可以说my favourite sport is basketball and football吗? Basketballl is my favourite sport.I _____ basketball _______