Question

even if 后面跟什么时态？一般时态，还是过去时态（虚拟语气）

Answer 1

虚拟语气.表示与事实不同,或不会发生的事.表示会发生的用even
though.后面跟正常时态.

Answer 2

与过去相反的假设
从句：had
done
主句：would、could，might，should
have
done
与现在和将来相反
从句
一般过去式
主句；would、could，might，should
do

Answer 3

虚拟语气,件句有真实条件句和虚拟条件句两种。真实条件句所表示的假设是有可能发生的，此时主句不用虚拟语气；而虚拟条件句则表示一种假想，与事实相反或不大可能会发生，此时用虚拟语气。
时态类型
主句谓语形式
条件句的谓语形式
例句
与现在事实相反
would/should/could/might+
V原
动词过去式
did
*be
多用were　
1.
If
I
were
you,
I
should
study
English.
2.
I
would
certainly
go
if
I
had
time.
与过去事实相反
would/should/could/might
+
have
done
动词过去完成式
had
done
1.
If
you
had
taken
my
advice,
you
would
not
have
failed
in
the
test.
2.
If
I
had
left
a
little
earlier,
I
would
have
caught
the
train.
与将来事实相反
would/should/could/might
+
V原
①动词过去式
②should
+V原
③were
+
to
do　
1.If
you
came
tomorrow,
we
would
have
the
meeting.
①
2.
If
it
were
to
rain
tomorrow,
the
meeting
would
be
put
off.③
*规律总结：从句都往过去推一个时态，如：与现在相反的if从句就用过去时；与过去相反用过去完成时（即过去的过