Question

have的过去式和过去分词是什么？？给点例句。。

Answer 1

have的过去式和过去分词都是had，但是具体应用有区别。
1.
表示过去用过去式：We
had
a
meeting
yesterday
.(发生在过去)
2.
表示现在完成（助动词的现在式+过去分词）：We
have
had
a
meeting
just
now.(虽然发生在过去，却对现在产生了影响，即会议的进程在说话时依然清晰可见)
3.
表示过去完成（助动词的过去式+过去分词）：We
told
him
we
had
had
a
meeting
the
day
before
yesterday.（发生在told的过去，即过去的过去）

Answer 2

have原型
had过去式
We
had
some
guests
for
dinner
last
night.
我们昨晚请了几位客人吃饭。
We
had
a
wonderful
time
on
the
beach.
我们在海滩上玩得好极了。
had过去分词
They
had
already
had
breakfast
before
they
arrived
at
the
hotel.