know的第三人称单数现在时：knows；现在分词：knowing；过去分词：knew；过去时：known。
基本字义
know
英[nəʊ] 美[no]
vt.知道；认识；懂得
vi.了解；熟悉；确信
双语例句
1.I don't know the name of the place.
我不知道那个地方的名字。
2.Gifford was a friend. I'd known him for nine years.
吉福德是我的一位朋友。我和他认识9年了。
3.We know of the incident but have no further details.
我们听说过这件事，但对详情不是很清楚。
4.Hire someone with experience, someone who knows about real estate.
雇佣有经验、了解房地产业的人。
5.It helps to know French and Creole if you want to understand some of the lyrics.
如果你想读懂一些抒情诗，学点法语和克里奥尔语是有帮助的。