不知道英文是：dont know。

dont：do not 的常用口语形式；

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过去式： knew过去分词： known

扩展资料

Don't you think talking to her would do some good?

你不觉得和她谈一谈会有用吗？

She didn't know what life in a foreign country would be like.

她不知道外国的生活会是什么样。

Life isn't like in the movies, you know.

你知道，生活不像在电影里那样。

I know you did it ─ I just want to know why.

我知道这是你干的，我只是想知道为什么。