找到一篇英文文章，将其中的动词变为过去时，并把原句与新句进行比较。

提供一篇英文文章。
原文：

"John regularly goes to the gym to work out. He likes to use weights and do cardio exercises. Sometimes he also takes fitness classes like spinning or yoga. His fitness routine helps him stay healthy and feel energized."

改写后的文本：

"John regularly went to the gym to work out. He liked to use weights and do cardio exercises. Sometimes he also took fitness classes like spinning or yoga. His fitness routine helped him stay healthy and feel energized."

可以看出，原文中的现在时动词被改为了过去时，使故事变得更加连贯，描述了 John 以前的健身习惯和行为。