文档介绍：一般过去时过去进行时
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Sentences:
I am an English teacher now.
I was a student in 2010.
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一般过去时 ide→rode，drive→drove，write→wrote 5.“想”“买”“带来”“打仗”——ought换上     think→thought，buy→bought，
bring→brought，fight→fought 6.“教书”“抓住”——aught切莫忘 如：     teach→taught，catch→caught 如：     know→knew，grow→grew，
throw→threw，draw→drew 8.“放”“让”“读”过去式与原形一样 如：   put→put，let→let，read→read/red
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grow -- grew
know -- knew
throw -- threw
blow -- blew
write -- wrote
drive -- drove
ride -- rode
get -- got
forget -- forgot
lend -- lent
send -- sent
spend -- spent
say -- said */sed/
pay -- paid
stand -- stood
understand -- understood
let -- let put -- put
cut -- cut read -- read*
am, is -- was
are -- were
do -- did
go -- went
have -- had
see -- saw
can -- could
may -- might
dig -- dug
eat -- ate
find -- found
make -- made
hear -- heard
run -- ran
take -- took
hold -- held
speak -- spoke
leave -- left
keep -- kept
sleep -- slept
sweep -- swept
tell -- told
sell -- sold
begin -- began
sing -- sang
sit -- sat
swim -- swam
ring -- rang
give -- gave
bring -- brought
buy -- bought
think -- thought
teach -- taught
catch -- caught
come -- came
become -- became
不规则动词的过去式
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一般过去时句式变换
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：主语 + 行为动词过去式
be动词过去式(was / were)
. We played football yesterday.
I was in the office last night.
He couldn’t swim 10 years ago.
did not / didn’t + 行为动词原形
was not / wasn’t + 其他成分
were not / weren’t + 其他成分
eg. I was not in the office last night.
I didn't sing a song at Kangkang's party.
I didn't play video games.
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3. 一般疑问句
did + 主语 +行为动词原形
was / were + 主语 +其他成分
eg. - Did you go shopping yesterday?
-Yes, I did. / No, I didn’t.
-Was she 15 ye