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现在完成时--动词变化规律(总3页)汉昭帝皇后
现在完成时
---动词变化规律
规则动词的过去式变化如下： 一般情况下，动词词尾加 -ed ，如： worked played wanted acted 以不发音的 -e 结尾动词，动词词尾加 -d，如： lived moved decided declined hoped judged raid wiped 以辅音字母 + y结尾的动词，把-y变为-i 再加-ed，如： studied tried copied justified cried carried embodied emptied 以一个辅音字母结尾的重读闭音节动词，双写词尾辅音字母，再加 -ed，如： stopped begged fretted dragged dropped planned dotted dripped 注：不规则动词的过去式变化规律性不强，须多加记忆。 go - went make - made get - got buy - bought come - came fly-flew 动词过去式,过去分词不规则变化 AB型 can--could shall--should will--would may--might传染病疫情报告
AAA型 cost—cost--cost cut—cut--cut hit—hit--hit 0hurt—hurt--hurt let—let--let
五行火字 must—must--must put—put--put t—t--t shut—shut--shut read—read--read
人工菌
ABA型 become—became--become come—came--come run—ran--run 画国旗
ABB型 bring –brought--brought buy—bought--bought think—thought--thought catch—caught--caught teach—taught--taught build—built--built lend—lent--lent nd—nt--nt spend—spent--spent dig—dug--dug feel—felt--felt keep—kept--kept sleep—slept--slept sweep—swept--swept leave—left--left smell—smelt—smelt pay—paid--paid say—said--said ll—sold--sold tell—told--told sit—sat--sat stand—stood--stood learn—learnt--learnt win—won--won have—had--had make—made--made hear—heard--heard find—found--found hold—held--held
国家计算流体力学实验室
ABC型 begin—began--begun drink—drank--drunk sing—sang--sung swim—swam--swum 24趣吧fly—flew--flown grow—grew--grown know—knew--known throw—threw--thrown draw—drew--drawn forget—forgot--
forgotten speak—spoke--spoken drive—drove--driven eat—ate--eaten give—gave--given ride—rode--ridden take—took--taken write—wrote--written am,is—was--been are—were--been do—did--done go—went--gone e—saw--en wear—wore--worn
