过去式: knew;过去分词: known;
know
v.知道;知悉;了解;认识到;懂得;意识到;确信;确知;肯定;
第三人称单数: knows;
现在分词: knowing
I don't know what to make of the new manager.
这位新经理,我不知道怎么评价他才好。
These problems are all in your mind, you know.
你知道,这些问题都只是你的凭空想象而已。
You'll like her once you get to know her.
你一旦了解了她就会喜欢她的。