我很了解你英语

i used to think that i know you, and thought that we could be like this always

I understand you / I know you .麻烦采纳，谢谢!

I know you well though there is a long distance between us.

当你在说“我想我很了解你”这句话的时候，想这个动作可以视为已经发生，因此用thought；而了解这个动作是发生在想这个动作之前的，因此用knew（并且这里i knew you是I thought的分句，分句的动词时态不能早于主句的动词时态，要么相同，要么晚于，具体看语境）。并且，我想我很了解你这句话还要放在具体的语境，结合说话人的感情进行翻译，并不只是只能这样翻译。

这句话用的就是过去时态，也可以不用过去时，也可以说I think I know you

I had thought that I know you and we could go on like this way .