run的過去式是ran、run，過去分詞是ran、run，第三人稱單數現在時是runs，現在分詞是running、run。
例句：
1、I excused myself and ran back to the telephone.
我說了聲抱歉，跑回到電話機旁。
2、The owner insisted on Cool Ground running in the Gold Cup.
主人堅持要讓“酷地”參加金盃賽馬會。
3、The hallway ran the length of the villa.
走廊貫穿了整個別墅。
4、Our host ran a long extension cord out from the house and set up a screen and a projector.
我們的主人從房裡牽出一根延長電線，架起螢幕和投影儀。
5、He laughed and ran his fingers through his hair.
他笑了，用手指攏了攏他的頭髮。
