什么时候用swim什么时候用swimming

swim是原型，swimming是动名词或现代分词。
例：I can swim.
I swim everyday.
I like swimming.
Shall we go swimming?
I have been swimming since I was ten.
Swimming is a kind of interesting sports.

swim
swim
AHD:[sw¹m]
D.J.[swim]
K.K.[sw!m]
v.（动词）
swam[sw²m] swum[sw¾m] swim.ming， swims
v.intr.（不及物动词）
To move through water by means of the limbs, fins, or tail.
游泳：通过四肢、鳍或尾巴在水中运动
To move as though gliding through water.
滑过水面
To float on water or another liquid.
漂浮：在水或其它液体上漂流
To be covered or flooded with or as if with a liquid:
沉没：用或似乎用液体浸泡或充溢：
chicken swimming in gravy.
浸在肉汁里的鸡肉
To possess a superfluity; abound:
拥有大量财富；富有：
After winning the lottery, she was swimming in money.
赢了彩票之后，她变得腰缠万贯
To experience a floating or giddy sensation; be dizzy:
眩晕：经历飘忽或眩目的感觉；眩晕：
“his brain still swimming with