内 容 提 要
一般现在时表示现在、经常或习惯的动作或状态和普遍现象、常识或客观真理；一般过去时用于过去某一时间内发生的或过去习惯性的动作或状态；一般将来时表示将要发生的动作或存在的状态，将来打算做的事情；现在完成时表示过去发生的动作造成目前的结果和对现在造成的影响或表示从过去延续至今的动作、状态和习惯等；将来完成时表示将来某时之前业已完成或发生的事情；过去完成时表示过去某时间之前已经发生的动作或状况，即过去的过去。注意每一种时态与其他时态的交叉使用情况。英语共有十六种时态，其表现形式如下(以study为例)：
| 一般时 | 进行时 | 完成时 | 完成进行时 | |
|---|---|---|---|---|
| 现在 | study studies | am studying is studying are studying | have studied has studied | have been studying has been studying |
| 过去 | studied | was studying were studying | had studied | had been studying |
| 将来 | shall study will study | shall be studying will be studying | shall have studied will have studied | shall have been studying will have been studying |
| 过去将来 | should study would study | should be studying would be studying | should have studied would have studied | should have been studying would have been studying |
但考试中出现的一般有以下几种：
一般现在时, 一般过去时, 一般将来时, 现在完成时, 将来完成时和过去完成时, 进行时态
