、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:want — wanted, work — worked, need — needed, clean — cleaned 2. 以不发音的 e 结尾的在词尾加-d。如：like — liked, live —lived, use — used, move — moved 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：stop — stopped, trip — tripped planned; 4. 以辅音字母加 y结尾的动词，先把y变成i,再加-ed。如：study — studied, carry — carried, hurry — hurried, marry — married 注意：规则动词过去式加 在浊辅音和元音后面 [d] called [k ?ld] borrowed [b ?r??d] 在清辅音后面 在[t] [d]音后面 worried; studied. “ed后的发音规则： moved[mu:vd] passed[pa:st] counted['kauntid] [t] helped[helpt] [id] started['sta:tid] needed['ni:did] counted['kauntid]补充说明: 二、不规则动词(Irregular Verbs)的过去式大体上归纳有以下记忆法： 1. 以t结尾的词，过去式与原形相同。如： put — put, let —let, cut —cut, beat — beat read — read must--must 2. 以 d 结尾的词，把 d 变成 t。如：build — built, lend —lent, send —sent, spend — spent 3. 以 n 结尾的词，在词后加 t。如： mean — meant, burn — burnt, learn — learnt 4. 以 ow / aw 结尾的词， 把 ow / aw 变成 ew。如：blow — blew, draw —drew, know — knew, grow —grew throw —threw (动词 show 除夕卜，show — showed ) 5. 含有双写字母的词，将双写改为单写，在词尾加t。如：keep — kept, sleep — slept, feel —felt, smell — smelt sweep — swept 6. 含有元音字母 o /i 的词，将o /i 变成 a。如:come —came give — gave, sit — sat, drink — drank 7 .以ought和aught结尾，且读音是〔：t〕的过去式。如： bring — brought , buy — bought , think —thought , catch — caught , teach —taught 8 .把重读开音节中的i改为o,变成过去式。如： drive —drove , ride — rode , write —wrote 9.动词原形中的e改为o,如： get—got, forget — forgot 10 .动词原形中的 ee改为e,如： feed — fed , meet — met 11 .动词原形中的 eak改为oke,如： break — broke , speak — spoke 12.动词原形中的 ell改为old,如： become — became sing —sang, sell — sold , tell — told 13 .动词原形中的 an改为oo ,如： stand — stood , understand — understood 14 .以ould结尾且读音为〔ud〕的情态动词过去式。如： can — could , shall — should , will —would 15 .在动词原形后加 d或t变成过去式，并且发生音变。如： hear〔hi〕— heard〔h :d〕, say〔sei〕— said〔 sed〕, mean〔mi:n〕— meant〔ment〕 16 .不符合上述规律的动词过去式。如： am , is —was , are — were , build — built , do —did , eat — ate , fall — fell, find — found , fly — flew , go —went , have / has — had , hold — held , leave — left, make — made , may — might , run — ran , see—saw , take —took 本文来源：https://www.wddqw.com/doc/25833f2b3369a45177232f60ddccda38376be18d.html