everthing is allowed except to swim in the river.不定式后面没有谓语嘛

问题描述:

everthing is allowed except to swim in the river.不定式后面没有谓语嘛

这里不定式做宾语
谓语动词...分为实义动词和Be动词(即am is are)
不定式都有动词了..怎么可能没有连接词就出现动词?!