一、规则动词(Regullar Verbs) 的过去式由“动词原形+-ed”构成，具体变化有：1. 一般的直接在词尾加-ed。如: wantwanted, workworked, needneeded, cleancleaned2. 以不发音的e结尾的在词尾加-d。如：likeliked, livelived, useused, movemoved smile-smiled; hope-hoped. 注意：ie结尾动词,直接加d: died;tied.3. 以一个元音字母加一个辅音字母结尾的重读闭音节动词，先双写结尾的辅音字母，再加-ed。如：stopstopped, triptripped planned;4. 以辅音字母加y结尾的动词，先把y变成i，再加-ed。如：studystudied, carrycarried, hurryhurried, marrymarried worried; studied.注意：规则动词过去式加“ed”后的发音规则：在浊辅音和元音后面 dcalled k:ld
