看他正在咳嗽用英文怎么说

在英语中，可以用 "He is coughing" 来描述一个人正在咳嗽。

这个表达的来源是来自于英语动词 "to cough"，意思是 "咳嗽"。

下面是一些例句：

"I think he has a cold because he has been coughing a lot." (我觉得他得了感冒，因为他咳嗽很厉害。)
"She covered her mouth with a tissue when she started coughing." (当她开始咳嗽时，她用纸巾捂住了嘴。)
"He took some cough syrup to help control his cough." (他吃了一些止咳糖浆来帮助控制咳嗽。)