"enough"后面可以跟以下几种类型的词：
不可数名词或可数名词复数
例如：There is enough food for everyone.
形容词
例如：She is old enough to travel alone.
副词
例如：She sings enough to fill the room.
动词不定式
例如：You need enough time to finish the project.
名词短语（形容词+enough+for sb）+to do sth
例如：There is enough money for us to buy a new house.
总结：
"enough"后面可以跟不可数名词或可数名词复数、形容词、副词和动词不定式。具体使用哪种形式取决于句子的语境和所需的语法结构。