WANT SOMETHING

Do you want (it)?
你 要 不 要?
Nǐ yào bu yao?
How many do you want?
你 要 几个?
Nǐ yào jǐ ge?
Then I really don't want it.
那 我 真的 不 要 了。
Nà wǒ zhēnde bùyào le.
It is too expensive. I don't want (it).
太 贵 了,我 不 要 了。
Tài guìle, wǒ bù yào le.
I don't want this.
我 不 要 这个。
Wǒ bù yào zhège.
I have bought two, do you want one?
我 买 了 两个,你 要 一个 吗?
Wǒ mǎile liǎng gè, nǐ yào yīge ma?

WANT TO DO STH

I would like to drink beer.
我 想 喝 啤酒。
Wǒ xiǎng hē píjiǔ.
Who will drink juice? / Who wants to drink juice?
谁 要 喝 果汁?
<Shéi yào hē guǒzhī?>
I want to play one song for you.
我 想 给 你 听 一首 歌。
<Wǒ xiǎng gěi nǐ tīng yī shǒu gē.>
What will you eat? / What do you want to eat?
你 要 吃 点 什么?
Nǐ yào chī diǎn shénme?
I want to show you a very pretty thing.
我 想 给 你 看 很 漂亮 的 东西。
<Wǒ xiǎng gěi nǐ kàn hěn piàoliang de dōngxi.>
I want to open the internet banking.
我 想 开 网上 银行。
Wǒ xiǎng kāi wǎngshàng yínháng.