i won't go back to that store again 为什么加to

i won't go back to that store again 为什么加to

因为go back是不及物动词词组.所以后面要加to为介词.

正如上面那位所说，go back是不及物动词词组，后面如果是副词就不用to，例如home；接其它名词时要价to