有时候春节在1月，有时候春节在2月。

Yǒu shíhou Chūnjié zài yī yuè, yǒu shíhou Chūnjié zài èr yuè.

Sometimes Spring Festival takes place in January, sometimes it is in February.

有时候我晚上不想看电视。

Yǒushíhou wǒ wǎnshang bù xiǎng kàn diànshì.

Sometimes I don’t want to watch TV at night.

他有时候在家工作。

Tā yǒushíhou zài jiā gōngzuò.

Sometimes he works at home.