he hardly ever exercise 中hardly ever 不是个否定词么?后面的动词不用原型么?

he hardly ever exercise 中hardly ever 不是个否定词么?后面的动词不用原型么? 是exercise hardly ever还是hardly ever exercise? 1.how often does chen exercise?he hardly ever exercise.的中文 hardly ever 的音标? hardly ever的用法 hardly ever hardly 和hardly ever的区别? hardly 与hardly ever的区别? 如果主语是第三人称单数,seldom、rarely、hardly ever等否定词后动词是否要+s? hardly ever 后面跟动词的什么形式（由主语而定吗?） hardly ever的同义词是什么? never ,hardly ever ,hardly.相等?