周末我有时看书，有时看电视。

Zhōumò wǒ yǒushí kànshū, yǒushí kàn diànshì.

On weekends I sometimes read books and sometimes watch TV.

他有时在家工作，有时在公司工作。

Tā yǒushí zài jiā gōngzuò, yǒushí zài gōngsī gōngzuò.

He sometimes works at home and sometimes at the office.

我有时坐公交车上班。

Wǒ yǒushí zuò gōngjiāochē shàngbān.

I sometimes take the bus to work.