爱华网（动词过去式,过去分词不规则变化）
AB型
can could shall should will would may might
AAA型
cost cost cost cut cut cut hit hit hit hurt hurt hurt et let let must must must put put putset set set shut shut shut read read read
AAB型
beat beat beaten
ABA型
become became become come came come run ran run
ABB型
bring brought brought buy bought bought think thought thought catch caught caught
teach taught taught build built built lend lent lent send sent sent spend spent spent
dig dug dug hang hung hung feel felt felt keep kept kept sleep slept slept
sweep swept swept leave left left smell smelt smelt spill spilt spilt lay laid laid
pay paid paid say said said sell sold sold tell told told sit sat sat
spit spat spat stand stood stood understand understood understood learn learnt learnt
mean meant meant spoil spoilt spoilt shine shone shone win won won have had had
make made made hear heard heard find found found hold held held
ABC型
begin began begun drink drank drunk ring rang rung sing sang sung sink sank sunkswim swam swum blow blew blown fly flew flown grow grew grown know knew known
throw threw thrown draw drew drawn show showed shown break broke broken
choose chose chosen forget forgot forgotten freeze froze frozen speak spoke spoken
wake woke woken drive drove driven eat ate eaten fall fell fallen give gave given
hide hid hidden ride rode ridden rise rose risen take took taken m
istake mistook mistakenwrite wrote written am,is was been are were been do did done go went gone
lie lay lain see saw seen wear wore worn
易错型
show showed shown draw drew drawn fall fell fallen feel felt felt hold held held
help helped helped think thought thought thank thanked thanked take took taken
talk talked talked get got got forget forgot forgotten meet met met mean meant meant hit hit hit hide hid hidden ring rang rung bring brought brought eat ate eaten beat beat beaten lie lay lain lay laid laid find found found found founded founded buy bought bought bring brought brought learn learnt learnt hear heard heard
规则动词的过去式由“动词原形+-ed”构成，具体变化有：
1. 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
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
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
不规则动词的过去式见课本后的不规则动词表。大体上归纳有以下六条记忆法：
1. 以t结尾的词，过去式与原形相同。如：put—put, let—let, cut—cut, beat—beat
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
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
6. 含有元音字母o / i的词，将o / i变成a。如：sing—sang, give—gave, sit—sat, drink—drank
规则动词词尾加-ed有三种读音：
1. 在清辅音后读作[t]。如：asked, helped, watched, stopped
2在浊辅音和元音后读作[d]。如：enjoyed, studied, moved, called
3. 在t / d后读作[id]。如：wanted, needed
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