Subject + 上课
上课 (shàngkè) means 'to attend class' or 'to have a lesson.' It combines the verb 上 (to go to, to attend) with 课 (class). It is commonly used to describe the action of going to or being in class.
我们八点开始上课,别迟到。
Wǒmen bā diǎn kāishǐ shàngkè, bié chídào.
Class starts at eight — don't be late.
你今天下午还要上课吗?
Nǐ jīntiān xiàwǔ hái yào shàngkè ma?
Do you still have class this afternoon?
老师说明天不用上课。
Lǎoshī shuō míngtiān bùyòng shàngkè.
The teacher said there's no class tomorrow.