他正在跑步英语怎么说

"He is running" 是表示 "他正在跑步" 的英文表达。

来源："running" 是英语中表示跑步的动词。

例句：

He is running in the park. (他正在公园里跑步。)
She saw him running down the street. (她看到他沿着街道跑步。)
They are running to catch the bus. (他们正在跑去赶公交车。)