动词的时态：
英语的时态共有十六种,大纲要求的是如下八种时态：一般现在、现在进行、现在完成、一般过去、过去进行、过去完成、一般将来和过去将来.其中最常考到的是：现在完成、过去完成和一般过去时.其考点往往是时态的替代,并常与语态相结合.
英语动词时态表
时间状态 一般时进行时完成时完成进行时
现在do
doesam doing
is doing
are doinghave done
has donehave been doing
has been doing
过去donewas doing
were doinghad donehad been doing
将来shall do
will doshall be doing
will be doingshall have done
will have doneshall have been doing
will have been doing
过去将来should do
would doshould be doing
would be doingshould have done
would have doneshould have been doing
would have been doing