动词的三单及不规则变化

附表1：动词第三人称单数、现在分词、过去式及过去分词变化规则：动词第三人称单数现在分词过去式及过去分词一般情况-s-ing-ed以-s,-sh,-ch,-o, -x结尾-es以辅音字母加y结尾变y为i再加-es变y为i再加-ed以重读闭音节结尾，末尾只有一个辅音字母双写后再加ing双写后再加ed以字母e结尾去e再加ing只加d附表2：动词第三人称单数、现在分词、过去式及过去分词变化规则：巧记ABB型:原形特征过去式过去分词例 词- eep-ept-eptkeep, sweep, sleep-ell-old-oldsell, tell-end-ent-entlend, spend, send-ay-aid-aidsay, pay-n-nt-ntburn, learn, mean-ing,-ought-oughtbring, buy, fight, think-each-aught-aughtcatch, teach巧记ABC型:原形特征过去式过去分词例 词-eak-oke-okenbreak, speak-eal-ole-olensteal-ear-ore-ornwear, bear, tear-ow-ew-owngrow, blow, know, throw-i-a-u-sink, swim, drink, ring, sing, begin-i-o-ndrive, rise, ride, write巧记AAA型:击中、 受伤、 让、 吐痰、去掉、 花费、 读、 放、 砍hit, hurt, let, spit, rid, cost, read, put, cut附表3：常见短暂性动词与延续性动词的转换 短暂性动词相应的持续性动词完成时态中的形式短暂性动词相应的持续性动词完成时态中的形式borrowkeephave keptcatch a coldhave a coldhave had a coldbuyhavehave haddiebe deadhave been deadopenbe openhave been openclosebe closedhave been closedget marriedbe marriedhave been marriedfall illbe illhave been illfall asleepbe asleephave been asleepreturnbe backhave been backgo to bedbe in bedhave been in bedgo/come to spbe in sp.have been in e herebe herehave been herebecomebehave beengo therebe therehave been therego outbe outhave been outstart/ beginbe onhave been onfinish/ endbe overhave been over