鸟在天空中飞。

Niǎo zài tiānkōng zhōng fēi.

The bird is flying in the sky.

天上飞着很多鸟。

Tiānshàng fēizhe hěn duō niǎo.

Many birds are flying in the sky.

飞机从北京飞到上海。

Fēijī cóng Běijīng fēi dào Shànghǎi.

The plane flies from Beijing to Shanghai.