原形动词变为过去式，可以概括为两类：一类是规则的变化，另一类是不规则的变化。
1.规则变化的动词过去式
（1） 在词尾加ed 或d
英语中大部分动词过去式都是规则变化的，即在动词后加上ed；如果结尾字母是不发音的e，则只要加上一个d就行了。例如:
work-worked clean—cleaned play-played
decide-decided live-lived love—loved
（2） 以辅音字母+y结尾的，变y为i加ed
study—studied hurry-hurried carry-carried
（3） 以重读闭音节结尾的,双写最后的辅音字母再加ed
stop-stopped drop-dropped wag—wagged
2。不规则变化的动词过去式
不规则变化是指过去式不能加ed，用另外一个词来表示。这样的不规则过去式也有很多，只有靠一个一个去记忆了。例如:
is/am-was are—were have/has-had
shall—should will—would can-could may— might
go-went come—came take—took
sit—sat say—said get—got swim—swam
run—ran write—wrote sing-sang tell—told
speak—spoke begin-began break-broke
不规则变化中，还有少数词的过去式与原形动词完成相同；read的过去式只是读音改变了。
samui例如:
cut—cut put-put let-let read—read [red］
keep—kept feel-felt sleep—slept sweep-swept
build—built lend—lent nd-nt spend—spent
ring—rang sit—sat drink-drank sing-sang swim—swam
think-thought buy-bought bring-brought fight—fought
teach—taught catch—caught
know—knew grow-grew throw—threw draw—drew
3.规则动词过去式的读音
在清辅音[p] [k] ［f］ [s] 等后，ed要读［t]。
例如： worked， finished
在元音或浊辅音［b］ ［g] ［v］ [z] ［m］等后，ed要读[d].
例如:lived, called
在[t]或[d]后，ed读[id]。
例如:started，needed
一般过去时-句型用法
mba什么意思
1.在确定的过去时间里所发生的动作或存在的状态。
时间状语有：yesterday, last week， an hour ago， the other day， in 1982等.
福州话翻译Where did you go just now？
2.表示在过去一段时间内，经常性或习惯性的动作。
When I was a child， I often played football in the street.
Whenever the Browns went during their visit， they were given a warm welcome。
3.句型2019国庆大阅兵：
collegeboardIt is time for sb. to do sth ”到……时间了" ”该……了”
It is time sb。 did sth。 ”时间已迟了” "早该……了”
It is time for you to go to bed。 你该睡觉了。
It is time you went to bed. 你早该睡觉了.
would (had） rather sb。 did sth. 表示’宁愿某人做某事'
I’d rather you came tomorrow.
4.wish， wonder， think, hope 等用过去时，作试探性的询问、请求、建议等.
I thought you might have some。 我以为你想要一些。
比较：
一般过去时表示的动作或状态都已成为过去，现已不复存在。
Christine was an invalid all her life.
(含义:她已不在人间。)
Christine has been an invalid all her life。
albinism(含义:她现在还活着）
Mrs. Darby lived in Kentucky for ven years.
(含义:达比太太已不再住在肯塔基州。)
Mrs. Darby has lived in Kentucky for ven years.
dropdeaddiva( 含义：现在还住在肯塔基州，有可能指刚离去）
注意： 用过去时表示现在,表示委婉语气。
1。动词want, hope， wonder, think, intend 等。 ironing>日语在线发音
Did you want anything el?
I wondered if you could help me。
