大部分的语法都是一般过去时和现在完成时。

Most of the grammar is just past simple and past perfect.

youdao

乍看起来，在现在完成时的用法中，似乎跟在一般过去时中一样，都没有“涉及现在”的因素。

At first glance it looks as if there is no element of "present involvement" in this use of the present perfect any more than in the simple past.

youdao

英语状态被动语态句型结构可以是一般现在时、一般过去时、现在完成时或者过去完成时。

The English stative passive voice sentences can be the simple present, the simple past, the present perfect or the part perfect.

youdao