你今天要上班吗？

Nǐ jīntiān yào shàngbān ma?

Do you have to work today?

我每天乘地铁去上班。

Wǒ měitiān chéng dìtiě qù shàngbān.

I take the subway to work every day.

我上班以前喝了咖啡。

Wǒ shàngbān yǐqián hē le kāfēi.

I drank coffee before work.