请便

nǐ fēi yào zǒu nà jiù qǐng biàn

你非要走，那就请便。

If you insist on leaving now, please go ahead.

nǐ rú guǒ bù xiǎng xué xí nà qǐng biàn ba

你如果不想学习，那请便吧。

Well, if you don't want to study, do as you please.

nǐ yào xiǎng chàng gē jiù qǐng biàn ba

你要想唱歌，就请便吧。

Well, if you want to sing a song, please go ahead.

yào shuì jiào nǐ qǐng biàn

要睡觉，你请便。

Well, if you want to sleep now, go ahead.

nà lǐ yǒu diàn huà yào yòng nín qǐng biàn

那里有电话，要用，您请便。

The phone lies there, and it's free for you to use.