现在完成时--动词变化规律

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1、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：workedplayedwantedacted以不发音的-e结尾动词，动词词尾加-d，如：livedmoveddecideddeclinedhopedjudgedraisedwiped以辅音字母+y结尾的动词，把-y变为-i再加-ed，如：studiedtriedcopiedjustifiedcriedcarriedembodiedemptied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：stoppedbeggedfret

2、teddraggeddroppedplanneddotteddripped注：不规则动词的过去式变化规律性不强，须多加记忆。go-wentmake-madeget-gotbuy-boughtcome-camefly-flew动词过去式,过去分词不规则变化AB型can--couldshall--shouldwill--wouldmay--mightAAA型cost—cost--costcut—cut--cuthit—hit--hit0hurt—hurt--hurtlet—let--letmust—must--mustput—put--p

3、utset—set--setshut—shut--shutread—read--readABA型become—became--becomecome—came--comerun—ran--runABB型bring–brought--broughtbuy—bought--boughtthink—thought--thoughtcatch—caught--caughtteach—taught--taughtbuild—built--builtlend—lent--lentsend—sent--sentspend—spent--spentdi

4、g—dug--dugfeel—felt--feltkeep—kept--keptsleep—slept--sleptsweep—swept--sweptleave—left--leftsmell—smelt—smeltpay—paid--paidsay—said--saidsell—sold--soldtell—told--toldsit—sat--satstand—stood--stoodlearn—learnt--learntwin—won--wonhave—had--hadmake—made--madehear—heard--h

5、eardfind—found--foundhold—held--heldABC型begin—began--begundrink—drank--drunksing—sang--sungswim—swam--swumfly—flew--flowngrow—grew--grownknow—knew--knownthrow—threw--throwndraw—drew--drawnforget—forgot--forgottenspeak—spoke--spokendrive—drove--driveneat—ate--eatengive—g

6、ave--givenride—rode--riddentake—took--takenwrite—wrote--writtenam,is—was--beenare—were--beendo—did--donego—went--gonesee—saw--seenwear—wore--worn