英语中的过去式可以根据动词的规则和不规则性分为以下几种：
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1. 规则动词的过去式：
对于大多数动词，过去式是通过在词尾加上-ed构成的。例如：
walk → walked
talk → talked
如果动词以辅音字母结尾，并且这个辅音字母在发音时是清音，那么在加上-ed之前，需要将这个辅音字母双写。例如：
stop → stopped
swim → swam
2. 不规则动词的过去式：
不规则动词的过去式变化多样，没有固定的规则。以下是一些常见的例子：
go → went
do → did
have → had
see → saw
be → was/were（根据主语单复数变化）
come → came
eat → ate
drink → drank
do → did
say → said
take → took
write → wrote
read → read（过去式和原形相同）
3. 助动词和情态动词的过去式：
助动词和情态动词的过去式通常与原形相同，只有极少数例外。例如：
can → could
may → might
shall → should
will → would
must → had to
should → should
4. be动词的过去式：
be动词有三个过去式形式，根据主语的单复数和时态有所不同：
I/you/one/we/they was/were
he/she/it was
you (singular) were
you (plural) were
they were
这些是英语中过去式的基本种类，它们在构成和用法上都有一定的规律和例外。
