表示過(guò)去未曾實(shí)現(xiàn)的想法或打算，通常用過(guò)去完成時(shí)，但在一定的`上下文當(dāng)中，只要意思清楚，也可只用一般過(guò)去時(shí)。如：
I had expected to come early, but I missed the early bus. 我本來(lái)想早點(diǎn)來(lái)的，但未趕上早班車。
We expected him to arrive yesterday. 我們?cè)詾樗蛱炀蜁?huì)到的。
有時(shí)在其后接不定式的完成式，如上面第一句也可改成：
I expected to have come early, but I missed the early bus.
有時(shí)用于“It+be+過(guò)去分詞+從句”結(jié)構(gòu)，表示“預(yù)計(jì)……”。如：
It’s expected that the war would end soon. 預(yù)計(jì)戰(zhàn)爭(zhēng)不久即可結(jié)束。
It is expected that the report will suggest some major reforms. 預(yù)計(jì)這個(gè)報(bào)告會(huì)提出一些重大的改革。