我有时候上学迟到用英文怎么说

可以说“I'm running late for school" 或者 "I'm going to be late for school".

来源：这是一种常见的英语表达方式，在英语日常交流中经常使用。

例句：

I'm running late for school, I overslept this morning.
(我今天早上睡过头了，现在上学迟到了。)
I'm going to be late for school, traffic was really bad this morning.
(今天早上交通状况很糟糕，我上学要迟到。)