set的過(guò)去式仍然是set，是不規(guī)則變化的動(dòng)詞。英語(yǔ)單詞中由動(dòng)詞原形轉(zhuǎn)變?yōu)檫^(guò)去式和過(guò)去分詞時(shí)不按詞尾加“-ed”之變化規(guī)則者叫做不規(guī)則動(dòng)詞（irregular verbs）。有些不規(guī)則動(dòng)詞，第三人稱單數(shù)現(xiàn)在時(shí)和現(xiàn)在分詞也不規(guī)則。

set的過(guò)去式例句

1. We post up a set of rules for the house.

我們張貼了一份房屋生活守則。

2. Place the omelette under a gentle grill until the top is set.

將煎蛋餅放在烤架下用文火烘烤，直到表面凝固。

3. She conceded just three points on her service during the first set.

她在第一盤自己的發(fā)球局僅失了3分。

4. Fire may have breached the cargo tanks and set the oil ablaze.

大火當(dāng)時(shí)有可能把貨船上的油罐燒漏了，從而引燃原油。

5. The security zone was set up to prevent guerrilla infiltrations.

設(shè)立了安全區(qū)以防止游擊隊(duì)員的滲入。