我不会游泳。

Wǒ bù huì yóuyǒng.

I don't know how to swim.

我最近在学游泳。

Wǒ zuìjìn zài xué yóuyǒng.

Recently I've been learning to swim.

他觉得游泳很累，但是我觉得游泳很舒服。

Tā juéde yóuyǒng hěn lèi, dànshì wǒ juéde yóuyǒng hěn shūfu.

He thinks swimming is tiring, but I find it relaxing.