my favourite sport is 想知道后跟的是动词还是名词?

跟名词
is是系动词，后面接对应SPORT的名词

跟名词的时候不变，My favorite sport is basketball.
跟动词的时候要变ing的形式，My favorite sport is playing basketball.

my favourite sport is playing football.
my favorite sport is football.
都可以,名词和v-ing在语法上是等同的,能用名词的地方都可以用v-ing

my favorite sport is football.

名词