写出下面动词的过去试ride

visited played studied worried rided fed went stopped did went had ate bought
赠送过去式变化规则,请多加记忆
1、一般情况下,动词词尾加 -ed ,如：
work ---worked play---played wanted----wanted act----acted
2、以不发音的 -e 结尾动词,动词词尾加 -d,如：
live---lived move----moved taste---tasted hope---hoped
3、以辅音字母 + y结尾的动词,把-y变为-i 再加-ed,如：
study---studied copy---copied cry---cried carry---carried
4、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：
stop ---stopped
5、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
不规则动词的过去式的构成
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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