他不相信命运。

Tā bù xiāngxìn mìngyùn.

He doesn’t believe in fate.

也许这就是我的命运。

Yěxǔ zhè jiù shì wǒde mìngyùn.

Maybe this is my fate.

一场车祸改写了他的命运。

Yì chǎng chēhuò gǎixiěle tāde mìngyùn.

A car accident changed his destiny.