he likes swimming and running的同义句

He likes to swim and run。like doing A and doing B=like to do A and do B只有一个to 再问： 只有一个to????不是两个吗?前面形式一致啊 再答： 这类似于and连接的两个分句若主语相同，第二个分句省略主语一样，此处的to因为有and实际上组成了两个不定式结构。