英语单词的过去式变化
动词过去式规则变化大全:[1]
e结尾的情况:
e结尾的动词,
直接加d:
smile--smiled;
hope--hoped.
ie结尾动词,直接加d:
died;tied.
[2]
双辅音结尾的情况:
两个辅音字母(consonant)结尾的,
直接加ed:
helped;
learned.
[3]两个元音+一个辅音结尾的情况:
两个元音(vowels:a,e,i,o,u)加一个辅音字母结尾的动词,直接加ed:
rained;
heated.
[4]
一个元音+一个辅音结尾的情况:
一个元音(vowel)加一个辅音字母结尾的动词:
(1)
对单音节(one-syllable)单词,双写最后一个辅音字母加ed.
.
stopped;
planned;
(2)
对双音节(two-syllable)单词,如果重读在第一个音节处,不双写加ed.
如:
visited(重读在vis前);
offered(重读在of前);
(3)
对双音节(two-syllable)单词,如果重读在第二个音节处,双写词尾辅音字母加ed.
如:
preferred(重读在fer前);
admitted(重读在mit前);
referred;
deferred;
[5]
y结尾的情况:
元音+y结尾动词,直接加ed:
played;
enjoyed.
辅音+y结尾动词,y变i加ed:
worried;studied.
1．把动词原形中的i改为a，变成过去式。如：
begin—began，drink—drank，give—gave，ring—rang，sing—sang，sit—sat，swim—swam
2．把重读开音节中的i改为o，变成过去式。如：
drive—drove，ride—rode，write—wrote
3．改动词原形中的aw
／ow为ew，变成过去式。如：
draw—drew，grow—grew，know—knew，throw—threw（动词show除外，show—showed）
4．动词原形中的e改为o，变成过去式。如：
get—got，forget—forgot
5．动词原形中的ee改为e，变成过去式。如：
feed—fed，meet—met
6．动词原形中的eep改为ept，变成过去式。如：
keep—kept，sleep—slept，sweep—swept
7．动词原形中的eak改为oke，变成过去式。如：
break—broke，speak—spoke
8．动词原形中的ell改为old，变成过去式。如：
sell—sold，tell—told
9．动词原形中的an改为oo，变成过去式。如：
stand—stood，understand—understood
10．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
11．以ould结尾且读音为〔ud〕的情态动词过去式。如：
can—could，shall—should，will—would
12．把动词原形中的o改为a，变成过去式。如：
come—came，become—became
13．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〕
14．动词的过去式与动词原形一样。如：
let—let，must—must，put—put，read—read〔red〕
15．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，feel—felt，find—found，fly—flew，go—went，have
／has—
had，hold—held，leave—left，make—made，may—might，run—ran，see—saw，take—took
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