I cover the distance in five minutes when I go to school.这句话

I cover the distance in five minutes when I go to school.这句话有语病吗?
有语病的话指出错误的地方并改正全句

in+时间段,当用于将来时的时候,表示在.之后,用how soon 提问,当用于过去时的时候表示在.之内,用when
1过去将来时的构成（句型如下：）
肯定句：主语+be（was,were）going to+动词原形～.
否定句：主语+be（was,were）not going to+动词原形～.
疑问句：Be（Was,Were）+主语+going to+动词原形～?
肯定句：主语+would（should）+动词原形～.
否定句：主语+would（should）not+动词原形～.
疑问句：Would（Should）+主语+动词原形～?
仅供参考
I would cover the distance in five minutes when I went to school