expect的過去式怎么寫

　　例句：

　　Do not expect too much of him.

　　不要對(duì)他期望太大。

　　We expect a hot summer this year.

　　我們預(yù)料今年夏天很熱。

　　They no longer expect corporate profits to improve

　　他們不再期待公司利潤會(huì)增長。