我能写一些汉字。

Wǒ néng xiě yìxiē Hànzì.

I can write some Chinese characters.

我想买一些水果。

Wǒ xiǎng mǎi yìxiē shuǐguǒ.

I want to buy some fruit.

桌子上有一些书。

Zhuōzi shàng yǒu yìxiē shū.

There are some books on the table.