從句表示與將來事實相反，謂語動詞用“would／could／might＋動詞原形”。
例句：
Her head felt as if it would burst.
她覺得頭要爆裂了。
He made as if to speak.
他似乎要說點什么。
I don't feel as if I belong here.
我在這里感覺格格不入。
I felt as if my heart had stopped.
我覺得好像我的心都不跳了。
I can remember our wedding as if it were yesterday.
我們的婚禮我記憶猶新，就像昨天一樣。