Question

过去式的肯定句,否定句,疑问句的结构

Answer 1

1.
be-
was-
were,
否定句：
was
not=
wasn't,
were
not=
weren't,一般疑问句把was,
were提前到句首
如：
I
was
at
home
yesterday.
I
wasn't
at
home
yesterday.
Were
you
at
home
yesterday?
Where
were
you
yesterday?
2
行为动词：
主语+
过去式
主语+
didn'g
+
动词原形
（
否定句）
Did+
主语
+
动词原形
（
一般疑问句）
如：
I
played
football
yesterday.
I
didn't
play
football
yesterday.
Did
you
play
football
yesterday.
What
did
you
do
yesterday?
3
情态动词：如：
can
主语
+
could
+动词原形
主语+
couldn't
+
动词原形
Could
+
主语
+
动词原形
如：
I
could
swim
when
I
was
ten.
I
couldn't
swim
when
I
was
ten.
Could
you
swim
when
you
were
ten?
what
could
you
do
when
you
were
ten?
关于一般过去时态，我就想到这么多，希望对你有所帮助