i had .我有（過(guò)去時(shí)態(tài)）；我得.
例如：I had a phone.我曾有一部手機(jī).
I had better go.我最好還是去吧.
i have.我有（一般時(shí)態(tài)）.
I have a phone.我有一部手機(jī).
i have been ...ing現(xiàn)在完成進(jìn)行時(shí)態(tài)
I have been doing this job since last month.自從上個(gè)月起,我就已經(jīng)從事這個(gè)工作了.
i have been ...ed 現(xiàn)在完成時(shí)態(tài)
I have been finished this job.我已經(jīng)完成這個(gè)工作了.
i was taken 過(guò)去時(shí)態(tài)的被動(dòng)時(shí)態(tài)
I was taken back by Tom.我TOM帶回來(lái)的.
i am taken 現(xiàn)在時(shí)態(tài)的被動(dòng)時(shí)態(tài)
still 仍然
already 已經(jīng)
yet 也（用于否定句）
I haven't finished it yet.我也還沒(méi)有完成.
also也（用于肯定句）
I also went there.我也去過(guò)那里.