i had .... 我有（过去时态）；我得。
例如：I had a phone.我曾有一部手机。
I had better go.我最好还是去吧。
i have.... 我有（一般时态）。
I have a phone.我有一部手机。
i have been ...ing现在完成进行时态
I have been doing this job since last month.自从上个月起，我就已经从事这个工作了。
i have been ...ed 现在完成时态
I have been finished this job.我已经完成这个工作了。
i was taken 过去时态的被动时态
I was taken back by Tom.我TOM带回来的。
i am taken 现在时态的被动时态
still 仍然
already 已经
yet 也（用于否定句）
I haven't finished it yet.我也还没有完成。
also也（用于肯定句）
I also went there.我也去过那里。
参考资料：百度知道