表「好像」的假設法

A. S+V..as if +S +were/Ved   「與現在事實相反」

The child talks as if he were a man. 這小孩講話的樣子好像是大人。

B. S+V..as if +S +had+p.p.    「與過去事實相反」

He talks as if he had known the news yesterday.他講話的樣子好像昨天他就知道這消息了。

表「該是．．．的時候」的假設法

It is time that S+V-ed

=it is time that S+should +原形V

=it is time for 人+to+原形V

It is time we went home= It is time we should go home= It is time for us to go home

該是我們回家的時候了。