The boy is only five years old.He can't go to school.(两句合并成一句) The boy is not_____ _____to g

The boy is only five years old.He can't go to school.(两句合并成一句) The boy is not_____ _____to g

old enough
enough old是错的
old enough是对的
enough只能放在形容词后面
enough跟名词才是可前可后